Oxide Essays & Research Papers

Best Oxide Essays

  • oxides - 728 Words
     ICT  Design  DC  DPP  CE  MS  GRADE 11- CHMISTRY INVESTIGATION investigating the properties of Period 3 oxides Aim The purpose of this experiment is to examine the oxides of Period 3 elements and describe their bonding and structure. Introduction You carry out an investigation along similar lines to the work you did on the chlorides of the elements in Period 3 (Experiment 4.12). However, you will not be asked to test the oxides...
    Free
    728 Words | 4 Pages
  • Oxides Research - 2926 Words
    Oxides Research 1. Assess evidence, which indicates increases in atmospheric concentration of oxides of sulfur and nitrogen. Thorough collection of data, surveys, and tests from the 1950's indicate a rising trend in atmospheric concentrations of oxides of sulfur and nitrogen. An enhancement in funding, technological and information resources, has led to wider and more detailed analyses of oxides of sulfur and nitrogen concentrations, and as the diagrams indicate (see diagrams) there is a...
    Premium
    2,926 Words | 10 Pages
  • Magnesium Oxide - 631 Words
    Aim: to perform a firsthand investigation to compare the physical and chemical properties of magnesium and oxygen when they are experimented to form magnesium oxide Theory: The empirical formula of a compound is the formula that tells us the ratio in which the atoms are present in the compound. To calculate an empirical formula: - Write down the masses of all of the elements present - Convert masses to moles (by dividing by atomic weights in grams) - Divide through by the smallest number...
    Premium
    631 Words | 2 Pages
  • Finding the Formula of Magnesium Oxide
    Finding the formula of magnesium oxide Aims When magnesium is heated in air, it reacts with oxygen. During this oxidation reaction, magnesium oxide is produced. This increases the mass. If we know the mass of magnesium at the start, and the mass of magnesium oxide produced at the end, we can work out the mass of oxygen which has been combined with the magnesium. We can use these masses to work out the formula of magnesium oxide. Eye protection must be worn Apparatus Crucible and...
    Premium
    415 Words | 3 Pages
  • All Oxide Essays

  • Oxide and Correct Formulas - 565 Words
    16. Pure nitrogen combines directly with an active metal to form a - Nitride 17. In a sample of solid Al(NO3)3, the ratio of aluminum ions to nitrate ions is - 1:3 18. In a sample of solid calcium phosphate Ca3(PO4)2, the ratio of calcium ions to phosphate ions is - 3:2 19. What is the total number of atoms in (NH4)2SO4? - 15 20. What is the total number of oxygen atoms present in one unit of Mg(ClO3)2? - 6 21. What is the total number of atoms of oxygen in the formula Al(ClO3)3.6H2O?...
    Free
    565 Words | 3 Pages
  • Investigation for Magnesium Oxide - 2008 Words
    Hypothesis - The idea I aim to test in this experiment is the relationship between the mass of magnesium and mass of oxygen once the magnesium has been heated and reacted with the oxygen. There will be 3 variables in this experiment. The independent variable will be the mass of magnesium ribbon as different measurements will be taken and used for each trial. The dependant variable will be the mass of Magnesium Oxide, this is a measured variable as the mass of oxygen can be calculated and will...
    Premium
    2,008 Words | 5 Pages
  • Percent Composition Of Magnesium Oxide
     Percentage Composition of Magnesium Oxide Aleshia Otieno Mr. Taylor SCH3U-01 Lab #4 Monday, November 17, 2014 Introduction Percentage composition is the percentage of a formula mass represented by each element. Percentage composition compares the mass of one part of a substance to the mass of the whole. The law of definite proportions states that a specific compound always contains the same amount of elements in fixed proportions by mass. By finding the percent...
    Premium
    1,042 Words | 5 Pages
  • Magnesium Oxide Formula - 610 Words
    Working out the Formula of Magnesium oxide Aims When magnesium is heated in air, it reacts with oxygen. During this oxidation reaction, magnesium oxide is produced. This increases the mass. If we know the mass of magnesium at the start, and the mass of magnesium oxide produced at the end, we can work out the mass of oxygen which has been combined with the magnesium. We can use these masses to work out the formula of magnesium oxide. Apparatus Googles...
    Premium
    610 Words | 3 Pages
  • Magnesium Oxide Lab Report
     Chemistry SL Magnesium Oxide Lab Report Rashpreet Singh Date Performed: November 6, 2014 Research Question: To determine the empirical formula of the compound which forms between magnesium and oxygen. Design: The following figure represents the experiments lab setup, visualize the equipment used. Materials: Done 1. Ceramic evaporating dish 2. Electronic balance 3. Bunsen burner 4. Retort stand, ring clamp, clay triangle 5. Sand Paper 6. Tongs 7. Magnesium Ribbon Safety: Done 1....
    Premium
    856 Words | 4 Pages
  • Empirical Formula of Magnesium Oxide
    Empirical Formula of Magnesium Oxide Date: Aim: The aim of this experiment was to determine the empirical formula of magnesium oxide. Equipment: · Balance · Crucible and lid · Bunsen burner · Magnesium ribbon (0.2g) · Steel wool · Crucible tongs · Pipe clay triangle · Tripod Procedure: 1. Obtain a clean, dry crucible and lid, then heat them for approximately 5 minutes over a Bunsen burner 2. Clean the surface of a 20 cm strip of magnesium ribbon using steel wool 3....
    Premium
    621 Words | 3 Pages
  • Empirical Formula of Magnesium Oxide
    DETERMINATION OF EMPIRICAL FORMULA OF MAGNESIUM OXIDE Objective: The objective of this lab is to experimentally determine the empirical formula of Magnesium Oxide. Equipment: • Ring Stand • 5 inch ring • wire gauze • Crucible and Crucible lid • Butane burner • Magnesium • Crucible tongs • Safety glasses • Gloves Experimental Procedure 1. Setup ring stand with five inch ring and triangle. 2. Obtain desired amount of Magnesium, a crucible...
    Premium
    437 Words | 3 Pages
  • Combustion of Magnesium Oxide - 625 Words
     COMBUSTION OF MAGNESIUM OXIDE DESIGN Aim/Purpose: To calculate the number of moles and the empirical formula of magnesium oxide. Safety precautions: 1) Wear lab coat 2) Wear gogles. 3)Make sure the bunsen burner is working properly and their is no leakage. 4) Wear gloves. Hypothesis: The weight of the magnesium ribbon increases after burning, so this indicated that their was a change in mass. This change happened because of the magnesium ribbon inside the...
    Premium
    625 Words | 3 Pages
  • Laboratory 3. Empirical Formula Of An Oxide
     Laboratory 3. Empirical Formula Of An Oxide This experiment will demonstrate the law of conservation of mass, and more specifically, how the law can be used to experimentally determine the empirical formula of our intended product, magnesium oxide. In this experiment we will learn how to: 1. heat a sample in a crucible with a Bunsen burner. 2. use the method of weight by difference to determine mass quantities. 3. convert grams to moles. 4. determine the simplest ratio between...
    Premium
    960 Words | 3 Pages
  • Determining the Empirical Formula of Magnesium Oxide
    Chemistry Lab Report example: Chemistry Laboratory Report (Magnesium Oxide) INTRODUCTION: As we learned before on how to determine the empirical formula of a compound based on the test and also chemical analysis on it. Hence this experiment is mainly goes around with how to determine the empirical formula of Magnesium Oxide following various tight procedures in order to get the knowledge and apply it onto another compounds. We are investigating the empirical formula of Magnesium Oxide...
    Premium
    1,520 Words | 10 Pages
  • Experimental Determination of the Formula of Magnesium Oxide
    Experimental Determination of the Formula of Magnesium Oxide. Introduction: Magnesium is a mental, it is known to react with oxygen. Magnesium reacts vigorously when heated in the presence of air, which is why we have chosen high heat in our method to facilitate combustion. This oxidation reaction produces magnesium oxide gaining oxygen from the air. When sharing of electrons occur a chemical bond is made and the atoms combine to form a molecule. So, the predicted molecular...
    Premium
    653 Words | 4 Pages
  • Percentage composition by mass of Magnesium oxide
    Abstract: The purpose of this lab was to test the law of definite proportions for the synthesis reaction of combusting magnesium. In this lab, the polished magnesium ribbon was placed in covered crucible and was heated in order for it to react with Oxygen presented in air and in water provided. The result showed that Magnesium oxide formed through chemical reaction was made up of 60.19% magnesium and 39.81% oxygen, which is approximate proportion of both particles in every Magnesium oxide...
    Premium
    1,458 Words | 8 Pages
  • Magnesium Oxide Experiment Lab Report
    Objective: One objective was to figure out if the burnt Mg ashes weigh more than the product which is Magnesium Metal. Another objective was determining the formula of the compound that results when Magnesium and Oxygen react. Theory: The purpose of this lab was to confirm the chemical formula of magnesium oxide by comparing the masses of pure magnesium solid prior to any reaction and magnesium oxide solid after a reaction between all of the magnesium and oxygen from the air when heated from...
    Premium
    339 Words | 2 Pages
  • Determining the Empirical Formula of Magnesium Oxide
    Chemistry Practical Report: Topic: Determining the Empirical Formula of Magnesium Oxide Patrick Doan 11 CHEM 11 26/9/08 Table of contents 1.0 Aim 1 2.0 Theory 2-3 3.0 Materials 4 4.0 Method 4 5.0 Results 4 - 5.1 Qualitative Observations 4 - 5.2 Example Calculations for each Calculated Value 5-7 -5.21 Experimental Values and Associated Errors 5-7 - 5.3 Accumulated Raw Data 8 - 5.4 Mean...
    Premium
    1,976 Words | 10 Pages
  • Percentage Composition by Mass of Magnesium Oxide
    Percentage composition by mass of magnesium oxide – Report Objective: To measure and calculate the ratio of magnesium to oxygen in magnesium oxide. To compare the lab ratio to the percent composition calculation based on the formula. Hypothesis: Based on the law of definite proportions, the percentage composition of magnesium oxide should be around 60% magnesium and 40% oxygen. Materials: * Goggles * Centigram or analytical balance * 2-4 cm magnesium...
    Premium
    488 Words | 2 Pages
  • Periodic Trends Across The Period 3 Oxides
     Periodic trends across the period three oxides Clare Smerdon Access to Higher Education Science 08/04/2015 Julie Day Periodic trends across the period three oxides Objective This experiment is intended to explore the relationship between the physical properties of the oxides of Period 3 elements (sodium to chlorine) and their structures. Argon is obviously omitted because it doesn't form an oxide. Hypothesis This experiment will be...
    Free
    966 Words | 5 Pages
  • Physical Properties and Reactions of Period 3 Oxides
    PHYSICAL PROPERTIES OF THE PERIOD 3 OXIDES These pages explain the relationship between the physical properties of the oxides of Period 3 elements (sodium to chlorine) and their structures. Argon is obviously omitted because it doesn't form an oxide. A quick summary of the trends The oxides The oxides we'll be looking at are: |Na2O |MgO |Al2O3 |SiO2 |P4O10 |SO3 |Cl2O7 | | | | | |P4O6 |SO2...
    Premium
    4,428 Words | 15 Pages
  • Global Market For Metal Oxide Nanoparticles To 2022
    The properties of metal oxide nanoparticles/ nanopowders/nanocrystals display enhanced electrical, optical, magnetic and chemical properties from the bulk material of which they are made. Most manufactured nanoparticles are available in varying sizes, shapes and as surface coatings. Their use will increase greatly in the next decade as they are manufactured in hundreds of thousands of tons for use in a diverse range of products in markets including consumer electronics, automobiles, aerospace,...
    Premium
    526 Words | 4 Pages
  • This is lab report about The Synthesis and Determination of Empirical Formula for Magnesium Oxide.
    The Synthesis and Determination of Empirical Formula for Magnesium Oxide Aim: To determine the empirical formula for magnesium oxide. Data Collection: Table 1 Mass of empty crucible, crucible + Mg (roughly 1cm pieces of a 15-cm piece of magnesium ribbon), and crucible +MgxOy. (mass measured with an analytical balance). The mass of crucible + MgxOy was obtained after a continuous process of heating, letting cool, heating with water enough to immerse the content and letting cool of the Mg....
    Premium
    519 Words | 4 Pages
  • Lab Report Chem - 907 Words
    Formal Lab Report #1 I. Basics Title of the Experiment: The Empirical Formula of an Oxide Authors: Section Number: Chemistry Location and Date II. Abstract The aim in this lab was to determine the empirical formula of an oxide of magnesium through combustion in air. This was achieved by heating an established mass of magnesium in air inside of a crucible, ultimately attaining a compound that contained Mg and O. The major result of the experiment was the empirical formula of the oxide of...
    Free
    907 Words | 3 Pages
  • 0620_s03_ms_1+2+3+5+6.pdf
    w w ap eP m e tr .X w om .c s er June 2003 INTERNATIONAL GCSE MARKING SCHEME MAXIMUM MARK: 40 SYLLABUS/COMPONENT: 0620/01 CHEMISTRY (Multiple Choice) Page 1 Mark Scheme IGCSE EXAMINATIONS – June 2003 Syllabus 0620 Question Number Key Question Number Key 1 2 3 4 5 C B A D A 21 22 23 24 25 B D A B D 6 7 8 9 10 C A A B C 26 27 28 29 30 B D D D B 11 12 13 14 15 B D C D...
    Free
    2,383 Words | 43 Pages
  • Lab Report - 347 Words
    Lab Report Abstract: The purpose of this lab was to see how magnesium reacts with oxygen. This reaction must be forced with heat. As magnesium changes to magnesium oxide the mass increased. Procedure: 1. Set up the stand and bunsen burne. 2. Go to crucible heat oven to obtain a crucible. 3. Weigh the crucible and lids mass. 4. Break up the magnesium ribbon on the crucible and weigh the mass of the magnesium, crucible, and lid. 5. Place the crucible on the ring stand over the flame....
    Free
    347 Words | 2 Pages
  • Chemistry Past Exam Paper (Cambridge Igcse)
    UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education *4308315385* CHEMISTRY Paper 2 Candidates answer on the Question Paper. No Additional Materials are required. READ THESE INSTRUCTIONS FIRST Write your Centre number, candidate number and name in the spaces at the top of this page. Write in dark blue or black pen. You may need to use a pencil for any diagrams, graphs or rough working. Do not use staples, paper clips, highlighters, glue...
    Premium
    2,372 Words | 24 Pages
  • Science - 562 Words
    Self Heating Food and Drink Cans Heater meals – originally developed for military use – are ready-made self-heating meal packs. They can be heated in many ways – by pressing a button on the packaging, unwrapping and shaking the pack, or pouring the contents of one bag into another and waiting for a few minutes – all of which use exothermic chemical reactions. These meals can be used to motivate students to study such reactions relatively safely and without the use of a burner. Plus there is...
    Premium
    562 Words | 2 Pages
  • Oxygen and Empirical Formula - 378 Words
    What is the empirical formula of a compound that contains 75% Ag and 25% Cl by mass? AGCL Calculate the approximate number of molecules in a drop of water with a mass of 0.10 g. 3 x 1021 molecules What is the percentage composition of CaSO4? 29.44% Ca, 23.55% S, 47.01% O What mass of calcium bromide is needed to prepare 150.0 mL of a 3.50 M solution? (Assume that the molecular weight of CaBr2 is 200.618 g/mol) 105 g Nitrous oxide (N2O), or laughing gas, is commonly used as an...
    Free
    378 Words | 2 Pages
  • The Makeup of Makeup - 1114 Words
    The Chemical Make Up of Makeup The cosmetic industry in America today is one that makes about $20 billion dollars a year and in 1996, according to Shannon Dortch in “Women at the Cosmetics Counter”, nearly 88% of women aged 18-24 were using some type of makeup every single day. Many women, though, are unaware of how makeup is made and the ingredients applied for color, thickness, and moisture. Most cosmetics contain a mixture of some of the following substances. Water, emulsifiers,...
    Free
    1,114 Words | 3 Pages
  • Chemical Analysis of Hydraulic Cement
    Designation: C 114 – 07 Standard Test Methods for Chemical Analysis of Hydraulic Cement1 This standard is issued under the fixed designation C 114; the number immediately following the designation indicates the year of original adoption or, in the case of revision, the year of last revision. A number in parentheses indicates the year of last reapproval. A superscript epsilon (e) indicates an editorial change since the last revision or reapproval. 1. Scope* 1.1 These test methods...
    Premium
    30,122 Words | 129 Pages
  • Chemical Formulas - 1145 Words
    Binary Compounds w/ Fixed Charge Given The Formula, Write The Name Binary Compounds w/ Fixed Charge Given The Name, Write The Formula Binary Compounds w/ Variable Charge: Stock System Given The Name, Write The Formula Binary Compounds w/ Variable Charge: Stock System Given The Formula, Write TheName 1) MgO 2) LiBr 3) Ca3N2 4) Al2S3 5) KI 6) SrCl2 7) Na2S 8) RaBr2 9) MgS 10) AlN 11) Cs2S 12) KCl 13) Sr3P2 14) BaI2 15) NaF 16) CaBr2 17) BeO 18) SrS 19) BF3 20) AlP 21) Rb2O 22) CaI2...
    Premium
    1,145 Words | 4 Pages
  • Ib Chemistry Ia - Oxidizing Magnesium
    Oxidizing Magnesium AIM: To determine the empirical formula of MgO RAW DATA COLLECTED: Mass of Mg/g | Mass of O2/g | Mass of MgO/g | 0.12 | 0.07 | 0.19 | 0.15 | 0.08 | 0.23 | 0.16 | 0.08 | 0.24 | 0.19 | 0.11 | 0.30 | 0.21 | 0.11 | 0.32 | 0.23 | 0.09 | 0.32 | CONCLUSION: When a mass of magnesium is burnt in air, it combines with the oxygen molecules to form magnesium oxide. The graph doesn’t completely verify the empirical formula of magnesium oxide. There is a slight...
    Premium
    475 Words | 2 Pages
  • Farhampton Inn - 498 Words
    The Magnesium Oxide Lab In a compound the atoms of different elements are present in numbers whose ratio is usually an integer or a simple fraction. The simplest (or empirical) formula of the compound expresses that ratio. Simplest formulas are determined by establishing the mass of each element present in a sample of the compound. From those masses one finds the number of moles of each element present. The mole ratio is also the atom ratio in the compound and that ratio provides the...
    Premium
    498 Words | 2 Pages
  • Empirical Formula Lab - 619 Words
    A) January 18, 2011B) Empirical Formula C) The purpose is to determine the empirical formula of a metallic oxide. D) Pre Lab Questions: After heating the metal, the crucible and contents should mass less than it did before it was heated. This is because heating the crucible may rid of other residue that was left in it; bringing it a to a constant mass. A yellow flame will deposit soot on the crucible. This would be a problem because the soot left on the crucible would vary from our...
    Premium
    619 Words | 3 Pages
  • Us Coking Coal Specifications.Pdf
    High Vol Petro Analysis Coal Analysis As Received Dry Basis % Moisture 7.52 xxxxxx % Ash 5.10 5.51 0.79 % Sul 0.86 %Volatile 37.35 34.54 Fixed Carbon 57.14 52.84 13,522 BTU/lb 14,622 MAF BTU 15,475 FSI 7 Oxidation 96 ____________________________________________________________ ____________ CERTIFICATE OF ANALYSIS PETROGRAPHIC ANALYSIS Date sampled: 09-Mar 11 MACERAL COMPOSITION VOLUME% REACTIVES V-Types 7 8 9 10 7.3 36.4 20.5 2.0 66.2 0.0 3.4 VITRINITE EXINITE RESINITE...
    Free
    1,294 Words | 6 Pages
  • Empirical Formula - 378 Words
    Chemistry pre- IB Empirical Formula Observations/Qualitative Data: I have used my sense to observe that the magnesium is a solid that is bendable, is very light and its color is silver. After being put in a Crucible covered by a lid, under a Bunsen burner for a few minutes, it has lit up and turned red. After the experiment was over, the magnesium was turned into an ash/powdery state and its color became white/grey. Data collection and Processing (DCP): Quantitative Data: Weight in grams...
    Premium
    378 Words | 2 Pages
  • Qualitative Analysis Discussion - 845 Words
    DISCUSSION: Qualitative analysis is used to determine the presence of cations or anions present within a sample and their impurities. Information known, such as chemical and physical properties, about cations and anions can be used to determine what steps should be used to separate the sample into one, specific ion. Qualitative analysis involves forming and decomposing complex ions. Qualitative tests are very sensitive, allowing to detect a very small amount present in sample. Due to...
    Premium
    845 Words | 3 Pages
  • Importance and Value of Trees - 1077 Words
    Importance and Value of Trees Since the beginning, trees have furnished us with two of life's essentials, food and oxygen. As we evolved, they provided additional necessities such as shelter, medicine, and tools. Today, their value continues to increase and more benefits of trees are being discovered as their role expands to satisfy the needs created by our modern lifestyles. Community and Social Value Trees are an important part of every community. Our streets, parks, playgrounds and...
    Free
    1,077 Words | 3 Pages
  • Student - 363 Words
    Exam Review Sheet #1 Balancing Equations and Simple Stoichiometry Answers are provided on the second sheet. Please try to do the worksheet without referring to them, because you’ll be expected to know this stuff the first day of school! Balance the following equations: 1) ___ N2 + ___ F2 ( ___ NF3 2) ___ C6H10 + ___ O2 ( ___ CO2 + ___ H2O 3) ___ HBr + ___ KHCO3 ( ___ H2O + ___ KBr + ___ CO2 4) ___ GaBr3 + ___ Na2SO3 ( ___ Ga2(SO3)3 + ___ NaBr 5) ___ SnO + ___ NF3 ( ___...
    Free
    363 Words | 2 Pages
  • Inorganic Nomenclature Handout - 587 Words
    Inorganic Nomenclature I. Compound Type Fixed Charge Metal Binary Salts Description Fixed Charge Metal* + a Nonmetal Rule: Full name of the metal + Stem on the nonmetal + the suffix “ide” Formula Name NaCl Sodium chloride CsF Cesium fluoride CaBr2 Calcium bromide MgO Magnesium oxide Li2S Lithium sulfide Al2O3 Aluminum oxide ZnH2 Zinc hydride AgI Silver iodide SrS Strontium sulfide Ca3N2 Calcium nitride K2Te Potassium telluride Na3N Sodium nitride CaC2 Calcium carbide LiH Lithium hydride...
    Free
    587 Words | 10 Pages
  • My Favorite Person - 1545 Words
    http://foricseandbeyond.blogspot.in/ DE’S FOUNDATION BISTUPUR, JSR ACTION OF HEAT ON CHEMICAL COMPOUNDS “Analytical chemistry -I” http://foricseandbeyond.blogspot.in/ metal oxide “Oxides of metals are generally stable to heat and they are considered to be most stable form of compound found in nature.” Oxides of potassium,sodium,calcium,magnesium, aluminum , zinc,iron,lead and copper are stable to heat uO C PbO Zn O http://foricseandbeyond.blogspot.in/ MERCURIC OXIDE...
    Free
    1,545 Words | 8 Pages
  • Chemistry Final - 404 Words
    1) How many hydrogen atoms are represented in the formula (CH3)2CH2? 1) _______ A) 8 B) 6 C) 9 D) 5 2) Which has the highest percent mass of Cl? 2) _______ A) C2Cl6 B) CCl4 C) C2Cl4 D) C2Cl2 3) The correct formula for Sodium Nitride is: 3) _______ A) Na3N B) NaNO2 C) NaNO3 D) Na2NO3 4) How many moles of NO3 are there in 6.2g? 4) _______ A) 0.05 B) 10 C) 0.10 D) 384 5) Consider the following equation: 4NH4 + 5O2 → 4 NO + 6H2O How many moles of...
    Premium
    404 Words | 4 Pages
  • Empirical Formula : Lab Report
    Name: J.T Empirical Formula of Magnesium Oxide: Lab Report The objective of the experiment is to determine the empirical formula of Magnesium Oxide through a procedure of heating magnesium ribbon to react with oxygen to form a magnesium oxide compound with the correct ratio of atoms within each element; 1:1. Equipment: REFER TO EXPERIMENT SHEET Method: REFER TO EXPERIMENT SHEET Results: Object | Mass (g) | Crucible + Lid | 38.23 | Crucible + Lid + Magnesium | 38.57 |...
    Premium
    530 Words | 3 Pages
  • KEY Formulas Equations 2
    17. In a sample of solid Al(NO3)3, the ratio of aluminum ions to nitrate ions is (1) 1:1 (2) 1:2 (3) 1:3 (4) 1:6 19. What is the total number of atoms in (NH4)2SO4? (1) 10 (2) 11 (3) 14 (4) 15 22. Write the correct formula for the following binary ionic compounds. (a) Lithium fluoride LiF (b) Calcium oxide CaO (c) Aluminum nitride AlN (d) Beryllium chloride BeCl2 (e) Potassium iodide KI (f) Aluminum oxide Al2O3 23. Write the correct formula for the following binary...
    Free
    346 Words | 2 Pages
  • Microelectronic Fabrication - 695 Words
    Introduction to Microelectronic Fabrication Lecture 1 January 11th, 2006  Brief overview of microelectronic fabrication •Dominant material: Silicon •Technology size •MOSFET fabrication •Safety Dominant material: Silicon  Obtaining ultrapure Si (other technology) Robert F. Pierret, Semiconductor Device Fundamentals, p.17  Single-crystal formation • Bridgmann method • Czochralski method USNA (lecture notes),...
    Premium
    695 Words | 12 Pages
  • Beryllium and Magnesium - 538 Words
    Beryllium and magnesium These are just like the reactions with dilute hydrochloric acid, and you have probably been familiar with the reaction between magnesium and dilute sulphuric acid almost since you started doing chemistry. Bubbles of hydrogen are formed, together with colourless solutions of beryllium or magnesium sulphate. For example: Calcium, strontium and barium Calcium sulphate is sparingly soluble, and you can think of strontium and barium sulphates as being...
    Premium
    538 Words | 3 Pages
  • Moles: Mole and Formula Units
    ***ANSWERS*** CP Chemistry Mole Review Practice Problems Find the mass of 0.89 mol of calcium chloride. 0.89mol x 111 g / 1 mol = 98.8 g Determine the number of moles of C5H12 that are in 362.8g of the compound. 362.8g x 1 mol / 72 g = 5.04 mol Find the mass of 0.159 mol of silicon dioxide. 0.159 mol x 60 g / 1 mol = 9.54 g You are given 12.35 g of C4H8O2. How many moles of the compound do you have? 12.35 g x 1 mol / 88 g =...
    Premium
    330 Words | 2 Pages
  • Igcse Chemistry Revision Guide
    CHEMISTRY REVISION GUIDE for IGCSE Coordinated Science This revision guide is designed to help you study for the chemistry part of the IGCSE Coordinated Science course. The guide contains everything that the syllabus says you need you need to know, and nothing extra. The material that is only covered in the supplementary part of the course (which can be ignored by core candidates) is highlighted in dashed boxes: Some very useful websites to help you further your understanding include:...
    Premium
    10,365 Words | 31 Pages
  • Language - 1154 Words
    WORKSHEET MOLE By Sir Shah Murtaza Q1. Potassium reacts with water as shown in the equation. a. Describe what you would see when potassium reacts with water. b. A sample of 0.195 g of potassium was added to 500 cm3 of cold water. When the reaction was finished, 100 cm3 of 0.100mol/dm3 hydrochloric acid was added to form solution X. (i) Calculate the number of moles of hydroxide ions formed when the potassium was added to water. (ii) Calculate...
    Free
    1,154 Words | 5 Pages
  • Production of Acetone - 1923 Words
    5.1 MANUFACTURING PROCESSES: Acetone is produced directly or indirectly by propylene. Early processes for the manufacture of acetone were based on the thermal decomposition of calcium acetate or the carbohydrate fermentation of corn starch or molasses. The ready availability of propylene in the 1960s led to routes based on the dehydrogenation of isopropyl alcohol or cumene peroxidation. (1) By Cumene Oxidation (Hock Process). Propene is added to benzene [71-43-2] to form cumene [98-82-8],...
    Premium
    1,923 Words | 6 Pages
  • Chemical Elements - 664 Words
    Chemical Nomenclature refers to the naming systems used with chemical formulas. This worksheet focuses on the most basic chemicals and nomenclature systems. Please read the information concerning each problem set and then attempt the problems associated with that information. The simplest compounds contain just two elements. Sodium chloride, NaCl, is an example of a binary compound. Several other examples are listed below. Potassium bromide KBr Calcium bromide CaBr2 Lithium fluoride...
    Premium
    664 Words | 4 Pages
  • Final Review Study Guide
    Quiz 1- 4,5,12 Quiz 3- 14, 16, 18 14. What is the electron configuration for aluminum? 1s22s22p63s23p1 16. The number of electron levels in a magnesium atom is 3, because magnesium is in period number 3. 18. What is the abbreviated electron configuration for nickel (atomic number 28)? [Ar]4s23d8 Quiz 5- 4,14, 18 5. The ion of aluminum is Answer: Al3+. 14. How many valence electrons are in the electron-dot structure of H2O? Answer: The number of valence electrons...
    Premium
    611 Words | 3 Pages
  • Heating Lead Nitrate - 203 Words
    Aim The aim of the experiment was to investigate the effects of heating Lead Nitrate (Pb(NO3)2. Method About three spatulas full of Lead Nitrate was poured into a small test tube. The Bunsen burner was lit in the usual way and set to the hottest flame. Using a test tube holder the test tube was carefully positioned about five centimetres above the bases of the flame. The experiment was halted prematurely because a crack appeared around the base of the test-tube. Also, every minute or so a...
    Premium
    203 Words | 1 Page
  • A Speech on Sexism - 2559 Words
    w w w e tr .X m eP e ap UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS General Certificate of Education Ordinary Level .c rs om 5070/11 CHEMISTRY Paper 1 Multiple Choice Additional Materials: Multiple Choice Answer Sheet Soft clean eraser Soft pencil (type B or HB recommended) October/November 2011 1 hour *0909424295* READ THESE INSTRUCTIONS FIRST Write in soft pencil. Do not use staples, paper clips, highlighters, glue or correction fluid. Write your name, Centre number and...
    Free
    2,559 Words | 24 Pages
  • Metallurgy: Oxygen and Ore - 1625 Words
    Extractive Metallurgy Minerals are naturally occurring chemical substances in the earth’s crust obtainable by mining. Out of many minerals in which a metal may be found, only a few are viable to be used as sources of that metal. Such minerals are known as ores. Examples: Galena, PbS, etc. It is usually contaminated with earthly or undesired materials known as gangue. The extraction and isolation of metals from ores involve the following major steps: • Concentration of the ore, • Isolation...
    Premium
    1,625 Words | 6 Pages
  • Empirical Formula of Zinc Iodide
    Experiment 9 Empirical Formula of Zinc Iodide Objectives Upon completion of this experiment, students should have learned: 1. The law of conservation of mass. 2. How to calculate an empirical formula. 3. The concept of limiting reagents. Introduction Synthesis and the determination of empirical formulas are two extremely important parts of chemistry. In this experiment, you will synthesize zinc iodide and determine its empirical formula. The molecular formula gives the...
    Premium
    1,849 Words | 8 Pages
  • Lithium Ion Batteries - 118 Words
    Lithium ion batteries 1. Introduction Chemical cells are important for our daily lives. There are many different types of cells designed for different uses. Lithium ion batteries are one of the common batteries and they are a secondary cell. 2.1 Chemical principle In lithium ion batteries, both the positive electrode and negative electrode contain lithium compounds. When the cell is discharging, the lithium ions move from the negative electrode to the positive electrode. When the cell is...
    Premium
    118 Words | 1 Page
  • Silicon Dioxide - 1596 Words
     Silicon dioxide (SiO2) is one of the most common oxides on the surface of earth. Like most oxides, it adopts a polymeric structure. Оксидите се хемиски соединенија што содржат најмалку еден атом на кислород и еден атом од друг хемиски елемент во својата формула. An oxide /ˈɒksaɪd/ is a chemical compound that contains at least one oxygenatom and one other element[1] in its chemical formula. Metal oxides typically contain an anion of oxygen in the oxidation state of −2. Most of the Earth's...
    Free
    1,596 Words | 6 Pages
  • Analytical Chemistry Questions - 894 Words
    Analytical Chemistry Daniel C. Harris: 7-4, 8,10,12,16 7-4) A 1.000g sample of unknown analyzed by Reaction 7-2 gave 2.500g of bis(dimethylglyoximate) nickel(II). Find the wt% of Ni in the unknown. 7-8) The man in the vat. Once upon a time, a workman at a dye factory fell into a vat containing a hot concentrated mixture of sulfuric and nitric acids, and he dissolved! Because nobody witnessed the accident, it was necessary to prove that he fell in so that the man’s wife could collect his...
    Premium
    894 Words | 3 Pages
  • Sample Paper Chemistry - 1204 Words
    Q.1 Bond enthalpy of fluorine is lower than that of chlorine, why? Q.2 Give the IUPAC name of the following compound: (CH3)3-C-C-COOH ║ O Q.3 On increasing temperature, activation energy of a reaction decreases, why? Q 4 Which of the following is most effective electrolyte in the coagulative of AgI/Ag+sol? K2SO4, MgCl2, K4[Fe(CN)6] Q.5 Write the reaction when glucose is heated with excess of HI. Q.6 Which Xe compound has distorted octahedral shape? Q.7 What is the denticity of...
    Premium
    1,204 Words | 6 Pages
  • SCIENCE SA 2 2013 14
    OUR OWN HIGH SCHOOL, Al WARQA’A, DUBAI SUMMATIVE EXAMINATION-2, MARCH -2014 Name: ______________________________________ Grade: VII Sec: ____ M Marks: 90 Time: 2 1/2 hours Subject: SCIENCE Date: 09/04/2014 General Instructions: 1. This question paper has 4 pages. 2. All questions are compulsory. 3. Question numbers 1 to 10 are questions of one mark each. 4. Questions 11 to 16 are very short answer questions of two marks each. 5. Question numbers 17 to 24 are short answer questions of 3 marks...
    Premium
    964 Words | 8 Pages
  • Chemistry Honors Study Guide
    Honors Chemistry Final Exam Study Guide Multiple Choice- (51 points @ 1/2 point ea.) Identify the letter of the choice that best completes the statement or answers the question. ____ 1. The pair of elements that forms a bond with the least ionic character is |a. |Na and Cl. |c. |O and Cl. | |b. |K and Cl. |d. |Mg and Cl....
    Free
    4,363 Words | 30 Pages
  • Oxidation Number - 308 Words
    Oxidation Number When elements combine to produce a compound, each element is assigned an “apparent” charge. This apparent charge, the charge an atom would have if both electrons in each bond were assigned to the more electronegative element, may be positive or negative. It is called the oxidation number or state of the element in the compound. Oxidation numbers are very useful in keeping track of what happens to electrons when various elements combine to form compounds. By remembering a...
    Free
    308 Words | 2 Pages
  • Practice Exam 1 - 1256 Words
    d 1. What is the correct formula for the carbonate ion? (a) CH3COO(b) Cl(c) CO22(d) CO32(e) (COO-)2 c 2. What is the name of Fe(OH)3? (a) (b) (c) iron hydroxide iron trihydroxide iron (III) hydroxide (d) (e) iron (II) hydroxide none of these d 3. From the following ionic compounds, choose the name-formula pair that is not correctly matched. (a) (b) (c) (d) (e) sodium sulfide ammonium nitrate zinc hydroxide sodium sulfate calcium oxide Na2S NH4NO3 Zn(OH)2 Na2SO3 CaO b 4. How...
    Premium
    1,256 Words | 6 Pages
  • Vandium Research Paper - 945 Words
    Introduction: Vanadium is a hard, silvery grey metal. Vanadium was discovered by Andrés Manuel del Río, a Spanish-born Mexican mineralogist, in 1801 [1]. Some sources say Vanadium is soft because it is ductile [1]. Vanadium is harder than most metals and steels [1] It is resistant to corrosion and it is stable against alkalis, sulfuric and hydrochloric acids[1]. It is oxidized in air at about 933 K (660 °C, 1220 °F) [1]. This paper will discuss the effects of Vanadium on the environment and...
    Premium
    945 Words | 3 Pages
  • pokemon - 616 Words
    Review of Related Literature Chalk is a type of limestone. Air and water do not wear chalk away easily, so when chalk is next to the sea, it often makes a largecliff. The "White Cliffs of Dover" in Kent, England are a good example of this. When chalk is near the top of the ground, it often makes chalk hills. Chalk holds water, so these chalk hills have a lot of water in them, and when the weather is very dry, water comes slowly from the chalk. Chalk is mostly formed from the calcareous...
    Premium
    616 Words | 2 Pages
  • Law of Constant Composition Lab: Magnesium and Oxygen
    Purpose: To determine the percent magnesium by mass in magnesium oxide and to observe if the percentage composition is constant by comparing class results. Hypothesis/Prediction: The percent composition by mass of magnesium in magnesium oxide will not change significantly with each group that conducted the experiment. The composition of each substance should stay the same and any differences must be due to some error. Materials:Magnesium stripCrucibleCrucible coverClay triangleIron ringRetort...
    Premium
    1,424 Words | 5 Pages
  • Sustainability paper vs. plastic.
    I. Introduction a. Why paper vrs Plastic b. The effects on our environment b.i. Paper b.i.1. Destroying our forest (http://web.archive.org/web/20070619104819/http://www.ecology.com/feature-stories/paper-chase/index.html) b.i.2. High level of consumption and waste b.i.3. paper polution b.i.4. Pulp Mills contribute to: b.i.4.a. air and land polution (Discarded paper is a major component of many landfill sites....
    Premium
    499 Words | 2 Pages
  • Preethi - 454 Words
    Chemistry : 1. Aluminium hydroxide on thermal decomposition gives aluminium oxide and water 2. Iron (iii) oxide reacts with carbon forming iron and carbonmonoxide 3. Hydrogen peroxide reacts with lead sulphide forming lead sulphate and water 4. Lithium reacts with nitrogen forming lithium nitride 5. Nickel sulphate reacts with sodium phosphate to form nickel phosphate and sodium sulphate 6. Silver oxide reacts with hydrogen peroxide to form silver , water and oxygen...
    Premium
    454 Words | 2 Pages
  • chemistry paper - 754 Words
    guess paper 1. Express the rate of following reaction in terms of disappearance of hydrogen in the reaction. 3H2(g) + N2(g) 2NH3(g) 2. What is peptisation? 3. Write Reimer Tiemann reaction. 4. Why is CO stronger ligand that Cl-. 5. Write structure of 2-(2-Bromophenyl)butane. 6. Complete the reaction C6H6+R COCl 7. Why pentahalides more covalent than trihalides? 8. What is difference between nucleoside and nucleotide? 9. Explain the following- (a) Gattermann...
    Premium
    754 Words | 4 Pages
  • Catalysis by Hydrotalcite Materials - 2684 Words
    Clays are one of the important natural materials, which have been examined for catalytic applications. Clays are characterized by a layered structure and hence they are slippery when wet. They are broadly classified as cationic or smectite type (having layer lattice structure in which two-dimensional oxyanions are separated by layers of hydrated cations) and anionic or brucite type (in which the charge on the layer and the gallery ion is reversed complimentary to smectite type). Anionic clays...
    Free
    2,684 Words | 7 Pages
  • Prac Report - 928 Words
    Nerissa Govender 209539579 CHEM 310 Experiment 1- Synthesis of Co (acac)3 Date of experiment performed: 03 August 2011 Date of hand in: 10 August 2011 Aim To prepare cobalt (III) acetylacetonate in the laboratory using cobalt (II) carbonate and acetylacetone at room temperature and pressure. Introduction The anion acetylacetone (acac) used in this practical functions as a ligand which forms a complex with the cobalt metal cation in an octahedral array where there is electrostatic...
    Free
    928 Words | 3 Pages
  • Investigating Acid Rain - 1340 Words
    1.) Explain why the following substances are added to soil by gardeners and farmers. a.) Lime CaO It increases the pH of soil.Soil that is too acidic presents two different problems for crops. First, the amount of necessary minerals in the soil such as potassium and calcium decreases. Second, aluminum and manganese levels increase to potentially toxic levels below a pH of roughly 5.5.Calcium oxide, addresses the problem. It reacts in water to release calcium ions and hydroxide ions, which...
    Premium
    1,340 Words | 4 Pages
  • Environmental Sustainability Paper - 1199 Words
    Environmental Sustainability Paper GLG/101 Danita LaSage Rachelle Ann Franko September 10, 2011 In today’s world it’s our responsibility as the population to create Sustainability with the earth’s resources. There are only so many resources on earth like timber, food, petroleum etc. to go around. The more that we use and take in the less it becomes available for us to consume. The world’s budget cannot indeterminately increase on a limited world. As a result the economy develops and the...
    Premium
    1,199 Words | 4 Pages
  • Metals and Non-Metals - 2553 Words
    Metals and Non-metals Elements are divided mainly into two groups on the basis of physical and chemical properties – Metal and Non-metal. Metals: Part - I Physical Properties of Metals:- Hardness:- Most of the metals are hard, except alkali metals, such as sodium, potassium, lithium, etc. Sodium, potassium, lithium etc. are very soft metals, these can be cut using knife. Strength:- Most of the metals are strong and...
    Premium
    2,553 Words | 11 Pages
  • Tree Plantations - 729 Words
     Tree Plantations Introduction For over 10,000 years, man has been the greatest factor affecting biodiversity through habitat destruction and fragmentation, overexploitation and pollution. With an ever increasing population and human activities, man is consuming more and more natural resources by increasing the use of energy, fuel,...
    Premium
    729 Words | 3 Pages
  • Advantages and Disadvantages of Traveling by Cheap Air Travel
    ADVANTAGES AND DISADVANTAGES OF TRAVELING BY CHEAP AIR TRAVEL Nowadays, cheap air travel is increasing popular in the word. Do the advantages overweigh its disadvantages? Nowadays, the increasing number of people is so keen on traveling that it is fashionable to travel via inexpensive flight. I am of the opinion that the advantages of cheap air travel play a more predominant role than its disadvantages. Obviously, it is the inexpensive airplane that is economical for average households...
    Premium
    280 Words | 1 Page
  • Ionic Bond and Sodium Peroxide
    Formula of oxide Na2O2 MgO Al2O3 SiO2 P4O10 Cl2O Melting Point (C) 460 2825 2072 1700 340 -120.6 Boiling Point (C) 657 3600 2977 2230 360 2.2 State at STP Solid Solid Solid Solid Solid Liquid Action of water Dissolve in water and form alkaline solution Slightly dissolve in water and form alkaline solution Insoluble in water Insoluble in water Dissolve in water and form acidic solution Dissolve in water and form acidic solution pH of aqueous solution...
    Premium
    1,733 Words | 7 Pages
  • Oxygen and Significant Figures - 615 Words
    Chemistry 121 Worksheet 3 (Fall 2013) 1) Determine the mass, in g, of a) 7.34 mol N 2O 4 b) 3.16 ×1024 O 2 molecules c) 18.6 mol CuSO 4 ⋅ 5 H 2O d) 4.18 ×1024 molecules of C2 H 4 (OH) 2 e) a quantity of the amino acid lysine, C6 H14 N 2O 2 , containing 3.03 mol N atoms 2) Determine the number of moles of a) N atoms in a sample of C7 H 5 (NO 2 )3 that has the same number of O atoms as 12.4 g C6 H12O6 b) Br2 in a sample consisting of 2.17 ×1024 Br atoms c) N atoms in 43.5 g...
    Premium
    615 Words | 3 Pages
  • Magnesium Strip - 335 Words
    Chemistry Internal Assessment 8 Lee Dong Hun (16) 5.12 Proverbs Table 1 : Mass of Magnesium Strip Mass of Magnesium Strip and Weighing bottle /g (± 0.001g) | 3.585 | Mass of Weighing bottle /g (± 0.001g) | 3.460 | Mass of Magnesium Strip /g (± 0.002g) | 0.125 | Table 2 : Mass of Crucible and lid Mass of Crucible /g (± 0.001g) | 15.147 | Mass of Lid /g (± 0.001g) | 9.670 | Table 3 : Mass of Magnesium Oxide Mass of Magnesium Oxide and Crucible and Lid /g (± 0.001g) | 24.985 |...
    Premium
    335 Words | 2 Pages
  • Anti-Microbial Nanocoatings Market- Applications, Drivers & Development
    In medical facilities it is necessary to equips materials and surfaces with a high level of hygiene using antimicrobial agents to protect them against bacteria and other micro organisms to prevent infections caused by bacteria and contribute significantly to reduce health costs. Benefits of nanoscale coatings in this sector include long lasting antimicrobial effect, constant release of the active substance, effectiveness against bacteria and other micro-organisms, no chemical impurities, easy...
    Premium
    343 Words | 2 Pages
  • Decomposing Copper Carbonate - 304 Words
    Decomposing Copper Carbonate Mass of Crucible (g) Mass of CuCo3 added (g) Mass of Crucible + Copper Oxide (g) Mass of CuO produced (g) 0.00 0.25 0.50 0.75 1.00 1.25 What happens to the mass of the copper carbonate when it is heated? Give a conclusion, which describes why the mass of copper carbonate may have changed during your experiment. When the copper carbonate is heated it decomposes forming copper oxide and carbon dioxide. The copper carbonate turns into a...
    Free
    304 Words | 2 Pages
  • Water and Empirical Formula - 432 Words
    PERCENTAGE COMPOSITION WORKSHEET 1. Calculate the COMPLETE percentage composition (by mass) of the following: (a) iron (III) oxide (Fe = 70.0%, O = 30.0%) (b) barium phosphate (Ba = 68.4%, P = 10.3%, O= 21.3%) 2. What is the percentage of sodium (by mass) in sodium phosphate? (42.1%) 3. For the hydrate sodium sulfate decahydrate, calculate the following: ­­­ (a) the percent of sodium (by mass) in the hydrate (14.3%) (b) percent of TOTAL oxygen (by mass)...
    Premium
    432 Words | 0 Page
  • Radioactive Element: Polonium - 480 Words
    Polonium has more isotopes than any other element, all of which are radioactive. Polonium dissolves readily in dilute acids, but is only slightly soluble in alkalis. Weight for weight it is about 2.5 x 1011 times as toxic as hydro cyanic acid (HCN). Polonium has been found in tobacco as a contaminant and in uranium ores. Polonium is radioactive and present only in extremely low abundances in the environment. It is quite metallic in nature despite its location beneath oxygen in the periodic...
    Premium
    480 Words | 2 Pages
  • 2009 ICAS G Paper ANSWERS
    2009 ICAS G paper ANSWERS 1. A 2. A 3. C 4. D 5. B 6. C 7. A 8. C 9. A (wind energy is renewable) 10. B 11. B 12. D 13. D 14. B 15. B 16. B 17. B? 18. B (the average change in mass is greatest) 19. A 20. A 21. C (because they are reflectors they need to be under the water to reflect the sunlight back up to to the water) 22. B? 23. C 24. C (the amount of liver changes but the other variables remain the same) 25. A (the temperature changes but the other variables remain the same) 26. B 27. C...
    Premium
    270 Words | 2 Pages
  • Wet Oxidation - 659 Words
    1. Mechanism of oxidation process In an oxidation process of silicon that usually takes place at very high temperature (thermal oxidation), silicon (Si) reacts with either water vapor (H20) or oxygen (O2) to form silicon dioxide,SiO2 on the silicon surface. The reaction is represented by following equations: Dry oxidation: Si + O2 → SiO2 Wet oxidation: Si + 2H2O → SiO2 + 2H2 The oxidation process can be implemented through...
    Free
    659 Words | 3 Pages
  • Ti02 in Road Pavements Reduces Nox
    TiO2 in Road Pavement Reduces NOx Abstract: The objective of this study is to test the hypothesis that titanium dioxide (TiO2) can function as a photo catalytic compound when used in the preparation of warm-mix asphalt (WMA). The proposed asphalt mixture would combine the benefits of WMA such as reduced energy consumption and emission during production with the photo catalytic properties of TiO2 to trap and degrade organic and inorganic particles in the air. Two application methods were...
    Premium
    2,743 Words | 8 Pages
  • The Effect of Air Pollution on Human Health
    The Effect of Air Pollution on Human Health Yinghua Cui English 151B - 11 Instructor Terry Taskey May 2, 2012 The Effect of Air Pollution on Human Health With the booming of science and technology, pollution has aroused wide public concern. Industrial civilization creates tremendous fortune. At the same time, automobile exhaust , the burning of waste, and a multitude of waste gas is discharged into the atmosphere. Humans live depend on air. Therefore, it is undeniable...
    Premium
    1,343 Words | 4 Pages
  • World Largest Building Materials Consumption Nation, China Insists on Green Way
    Building materials industry is one of the largest markets of wear resistant industry, besides cement industry, some new construction materials industries become important partners of wear resistant industry. KAIYUAN COMPANY has established long term cooperative relationship with China’s largest pipe pile manufacture---Jianhua Pipe Pile. China has become the world’s largest construction materials consumption nation. The development potential in construction materials industry is huge....
    Premium
    271 Words | 1 Page
  • Apollo 13 - 386 Words
    llo 13 [pic] Apollo 13 Problem Solving Using SPICES 1. What situation is the movie Apollo 13 about? They want to go to the moon and land on it. 2. What was the big problem that happened during the movie? There isn’t enough power to come back to Earth. This is the big problem because all the other problems branch of from this issue. 3. List three smaller problems that also came up in the process of trying to fix the big problem. They can’t land on the moon, because they...
    Premium
    386 Words | 2 Pages
  • Oxygen and Oxidation - 1581 Words
    OXIDATION AND REDUCTION Oxygen makes up only about 20% of the air, yet is the essential component for so many reactions. Without it fuels would not burn, iron would not rust and we would be unable to obtain energy from our food molecules through respiration. Indeed animal life on the planet did not evolve until a certain concentration of oxygen had built up in the atmosphere over 600 million years ago. The term oxidation has been in use for a long time to describe these and other reactions...
    Premium
    1,581 Words | 6 Pages
  • First Paper - 607 Words
    Christopher Bisda BIO 101 Week 1 Individual Assignment 02/08/2010 The Process of Science a. Chapter 2: Question 11 How might you use a radioactive isotope to find out whether the oxygen in CO2 comes from sugar or oxygen gas? I would substitute with a radioactive isotope of oxygen and run the reaction. Upon observation of the result, the oxygen came from what was used if the carbon dioxide is radioactive. If the carbon dioxide is not radioactive, then it came from the sugar....
    Premium
    607 Words | 2 Pages
  • SAS4113 Environmental Analysis COD ASS
    Module: SAS 4113 Environment Analysis Name: Lee Ka Man (English) 李嘉雯 (Chinese) Group no.: 1 Class: AS114103/A1 Date: 24/5/2013 Assignment 1 –Tutorial Questions on Chemical Oxygen Demand (COD) Experiment 1. What is the function of using KHP in the COD test? (2 marks) KHP is used as a control standard because KHP is stable pure organic compounds which have the theoretical value of COD(500ppm), so it can used to gain an idea...
    Premium
    729 Words | 3 Pages
  • Design and Simulation of a Band Pass Fabry-Perot Filter
    Design and Simulation of a Band Pass Fabry-Perot Filter “A.A. Cruz The University of Alabama in Huntsville Physics Department, 137 Madison Hall Huntsville, Al 35899, US April 2009.” Abstract In this study, a novel design of a Fabry-Perot band pass filter using as low and high index coating materials silicon dioxide (SiO2) and titanium dioxide (TiO2) is presented. Two high reflectance dielectric materials separated by a half wavelength “cavity” which is made up of SiO2 that...
    Premium
    2,270 Words | 9 Pages
  • Clo2 Residual Testing Method
    CHLORINE DIOXIDE AND CHLORITE 105 7. ANALYTICAL METHODS The purpose of this chapter is to describe the analytical methods that are available for detecting, measuring, and/or monitoring chlorine dioxide and chlorite, its metabolites, and other biomarkers of exposure and effect to chlorine dioxide and chlorite. The intent is not to provide an exhaustive list of analytical methods. Rather, the intention is to identify well-established methods that are used as the standard methods of...
    Premium
    2,156 Words | 9 Pages
  • Carbinates - 381 Words
    DISSCUSION: Carbonates are decomposed by heat into the corresponding oxides and carbon dioxide. The temperature of decomposition depends upon the activity of the metal; that is to say, the more active the metal, the more stable is the carbonate. Thus, the carbonates of sodium and potassium are stable at the highest temperature of a Bunsen burner flame, whereas the carbonates of silver and copper are easily decomposed. In this experiment copper (ii) carbonate will be decomposed at a high...
    Premium
    381 Words | 2 Pages
  • Acid Rain Effects on Plants, Aquatic Animals, and Infrastructure
    acid rain Acid rain is rain or any other form of precipitation that is unusually acidic. It has harmful effects on plants, aquatic animals, and infrastructure. Acid rain is mostly caused by human emissions of sulfur and nitrogen compounds which react in the atmosphere to produce acids. In recent years, many governments have introduced laws to reduce these emissions. Emissions from volcanoes and those from biological processes that occur on the land, in wetlands, and in the oceans account for...
    Premium
    560 Words | 2 Pages
  • Study Guide Stoichiometry Student Editable
    Stoichiometry Section 11.1 What is stoichiometry? In your textbook, read about stoichiometry and the balanced equation. For each statement below, write true or false. _______true___________ 1. The study of the quantitative relationships between the amounts of reactants used and the amounts of products formed by a chemical reaction is called stoichiometry. ________true__________ 2. Stoichiometry is based on the law of conservation of mass. _________false_________ 3. In any chemical reaction,...
    Premium
    1,503 Words | 8 Pages
  • Chemistry Nitrogen Family - 1100 Words
    Nitrogen Family (The traditional name for the elements in Nitrogen’s column, the “pnictogens”, comes from a Greek word for “choking” or “strangling”) P.7 Nitrogen: Fritz Haber discovered how to convert the Nitrogen in the air into an industrial product. Although nitrogen gas can suffocate those who are unsuspecting, tends to be benign, almost to the point of uselessness. The one important thing it can do is replenish the soil; it is as important to plants as vitamin c is to us. When pitcher...
    Premium
    1,100 Words | 3 Pages

All Oxide Essays