"Hydrogen" Essays and Research Papers


temperature; this chemical element is abbreviated as He. Helium has two protons in its nucleus whereas the atomic number of helium is 2 and is listed in group VIII of the periodic table. As a noble gas helium is almost chemically inert, unreactive. After hydrogen, helium is the most abundant element in the universe. During an eclipse in 1868, French astronomer Pierre Janssen discovered helium. After Helium was proven to be an element it was named by a British chemist Sir Edward Frankland and British astronomer...

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Hydrogen and Points

how they will effect the areas, and chemicals of the skin composition. 2. Describe the three different types of bonds, providing examples of molecules formed through each type of bond. (3 points) Covalent bond, methane. Ionic bond, table salt. Hydrogen bond, water. 3. What is the difference between a monosaccharide, disaccharide, and a polysaccharide? (3 points) A monosaccharide is a carbohydrate that doesn’t hydrolize. A disaccharide is a group of that yield monosaccharides on hydrolosis...

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Information on Iron and Hydrogen

HYDROGEN (NON METAL) Hydrogen is the chemical element with atomic number 1. It is represented by the symbol H. With an average atomic weight of1.00794 u (1.007825 u for hydrogen-1), hydrogen is the lightest element and its monatomic form (H1) is the most abundant chemical substance, constituting roughly 75% of the Universe's baryonic mass.[8] Non-remnant stars are mainly composed of hydrogen in its plasma state. In ionic compounds, it can take...

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Generation of Hydrogen Gas Lab

January 23rd, 2013 Generation of Hydrogen Gas Abstract Hydrogen gas was produced from a reaction in a eudiometer between a weighted amount of magnesium ribbon and 5ml of diluted 6M hydrochloric acid. The partial pressure of the hydrogen gas produced was calculated using Dalton’s Law of partial pressure. With this partial pressure value along with known values in the experiment the number of moles of hydrogen gas produced could be calculated using the ideal gas law equation and this experimental...

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Hydrogen Cars

Hydrogen Automobiles The effect of pollution that is emitted from vehicles is a serious concern in today's society. The cause of this pollution is the toxic emissions from current vehicles. This toxic emissions or pollution destroys the Earth's ozone layer or atmospheric gases Acknowledging these facts, many are very concerned with the condition of the Earth's atmospheric gases in the future. In just a very short time, scientists produced a new vehicle which only emits water out of its exhaust...

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Hydrogen Peroxide

Hydrogen Peroxide & Inorganic Peroxy Compounds Hydrogen Peroxide Hydrogen peroxide (H2O2) is the simplest peroxide (a compound with an oxygen-oxygen single bond). It is also a strong oxidizer. Hydrogen peroxide is a clear liquid, slightly more viscous than water. In dilute solution, it appears colorless.  Reactions Decomposition Hydrogen peroxide decomposes exothermically into water and oxygen gas spontaneously: 2 H2O2 → 2 H2O + O2 This process is thermodynamically favorable. It has...

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Molar Volume of Hydrogen Lab

able to be collected at the top of the graduated cylinder when it was inversed due to the pressure pushing the water out of the graduated cylinder. The results were recorded before the reaction was finished due to a time constraint. The volume of hydrogen gas was 11.5 mL, and the corrected volume was 11.3 mL because of the inversed meniscus, and the temperature of the water bath after the reaction was 22.1 °C. Using this information, the theoretical amount of moles of H2 gas that was to be produced...

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Existence of Hydrogen Bonds Between Ethanol Molecules

Experiment 9 Aim A. To investigate the existence of hydrogen bonds between ethanol molecules. B. To measure the strength of hydrogen bond formed between ethanol molecules C. To investigate the formation of hydrogen bonds between molecules of ethyl ethanoate and trichloromethane. D. To measure the strength of hydrogen bond formed between molecules of ethyl ethanoate and trichloromethane. Procedure A. 1. 10 cm3 of ethanol was added into an insulated 50 cm3 beaker by...

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Hydrogen Fuel Cells

more efficient sources of power. At the forefront of research for these power sources are hydrogen fuel cells. This power source takes in the most abundant element in the universe, Hydrogen, and yields immense power without combustion or pollution. The three aspects of this scientific breakthrough are the fuel cells, hydrogen production, and hydrogen storage. Fuel cells are the devices with which Hydrogen is made into electricity. These use a technology much similar to that of something we are...

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The Effect of Concentration of H2O2 on the Docomposition of Hydrogen Peroxide

hydrochloric acid In the lab, zinc granules react fairly slowly with dilute hydrochloric acid, but much faster if the acid is concentrated. The catalytic decomposition of hydrogen peroxide Solid manganese(IV) oxide is often used as a catalyst in this reaction. Oxygen is given off much faster if the hydrogen peroxide is concentrated than if it is dilute. The reaction between sodium thiosulphate solution and hydrochloric acid This is a reaction which is often used to explore the...

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effect of temperature on hydrogen peroxide

goggles and an apron or lab coat to protect our eyes and clothes. As we are using enzymes and Hydrogen Peroxide we need to be extra careful, ensuring they don't come into contact with our eyes, skin or clothes. Catalyse is an enzyme found in all living cells. It makes Hydrogen Peroxide decompose into water and Oxygen. We will be measuring the amount of Oxygen released from the Hydrogen Peroxide. In order to do this we will use a measuring cylinder. This piece of apparatus measures...

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Hydrogen - Fuel of the Future

that way if you believe in the power of change. Hydrogen fuel is that change for the automobiles of the future. Hydrogen has been used for decades, but mostly for commercial use. Each year, we get closer to removing the oil company’s choke hold on our wallets. It’s time to drive with a lighter purse and a cleaner environment and it’s time for hydrogen fuel. The two largest points of debate with hydrogen fuel are cost and production Hydrogen fuel is a cheaper alternative to our current source...

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Hydrogen Spectrum

Lab 3: Hydrogen Spectrum Abstract When white light is viewed through a diffraction grating, we can see each component that makes up the light. However, when in an excited state, a gaseous element produces bright light of specific wavelengths rather than a continuous spectrum of colors. This phenomenon ultimately lead to the Neils Bohr model of the atom in 1913. Introduction In the middle of the 19th century, Robert Bunsen and Gustav Kichoff observed that gases emit spectral lines specific...

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Hydrogen Uses, Purposes, and Compounds

Hydrogen is recognized as the simplest and lightest chemical element in the periodic table; even though it is identified as one of the top elements in abundance in the world (consisting of 0.9 percent of the total mass on earth), it is considered to be the most abundant element in the entire universe. It is a gaseous element with the atomic symbol being H. It is usually categorized under the first group of the periodic table known as the alkali metals. It contains only one electron that revolves...

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Discuss Why Hydrogen Bonding Is Essential for Life.

Discuss why hydrogen bonding is essential for life Throughout biochemistry there are many bonds without which life as it is on earth today would not be possible. One of the most important bonds of these is the hydrogen bond, a weak chemical bond that is present in essential biological molecules such as water and polypeptides. A hydrogen bond is defined by Campbell and Reece as occurring when a hydrogen atom is covalently bonded to an electronegative atom but attracted to another electronegative...

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Hydrogen Fuelled Cars

seem more suitable than hydrogen. The possibility of hydrogen as a fuel is ever increasing, with the advantages outweighing the disadvantages more every year. Car manufactures are already making cars that are hydrogen powered, although they are either prototypes or extremely limited production runs, but cars such as the Honda Clarity prove that hydrogen powered cars really are not a thing of the future, but a thing of the present. ABOVE: The Honda Clarity, the first hydrogen powered car to have a...

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Hydrogen Bonding Essay.

HYDROGEN BONDING: Hydrogen bonding is a bonding type consisting of dipole and dispersion forces. A hydrogen bond is the attractive force between a hydrogen atom attached to a molecule and an atom of a different molecule. According to the Pauling scale of electro-negativities of the elements, it can be viewed that the three most electronegative elements in the periodical table are nitrogen, oxygen and fluorine. These are also called heteroatoms. The heteroatoms have a partial negative charge while...

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Fuel Energizer

of Fuel By R.J. Kita Hydrogen is the lightest and most basic element known to man. With its simple structure comprised of only one proton and one electron, it is one of the major constituents of all hydrocarbon based fuels. By studying the response of hydrogen with respect to magnetic fields and the accompanying increased energy output, much can be learned and applied to other related fuels. In the oxidation/combustion of hydrocarbon fuels, it is the outer shell of the hydrogen that is combusted first...

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Questions and Answers on Chemistry

Name of the Student:………………… Date:………….. What is the volume of 1 mole of hydrogen gas? One mole of any gas occupies the same volume when measured under the same conditions of temperature and pressure. In this experiment you will calculate the volume of 1 mole of hydrogen at room temperature and pressure. Intended lesson outcomes By the end of this practical you should be able to: • further develop skills in manipulating apparatus and accurate measurement; • use the mole concept; • calculate...

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Water Essay

properties. With two hydrogen atoms sticking to an oxygen atom in a tetrahedron shape, water is considered as a polar molecule. Because oxygen is very electronegative, it pulls hydrogen's electrons towards it, causing oxygen to become partial negative. The hydrogen atoms then will have fewer electrons towards its own nucleus, therefore making it partial positive. Since positive charge and negative charge attracts each other, the molecular formation of H2O will result hydrogen bonding. Each water...

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Final writing exercise

Group A: Model Answer GROUP A MODEL ANSWER Yoshida et al., Flexibility of Hydrogen Bond and Lowering of Symmetry in Proton Conductor, Symmetry 2012, 4, 507-516. DO NOT PLAGIARISE THIS MODEL ANSWER PLAGIARISM FROM ANY SOURCE AUTOMATICALLY LEADS TO A ZERO SCORE Paragraph 1 There are three phases whereby each has a different crystal structure at three different temperatures. At room temperature (298K), Phase III is present whereby Cs3H(SeO4)2 has a crystal structure of a monoclinic...

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surprised that the power used by these lamps are also used in one of the most destructive weapon, the hydrogen bomb. This power is tritium, an isotope. Isotopes are elements that have different amounts of neutron (Knapp 11). Tritium is an isotope of hydrogen, that is used in modern science and there are also health implication through the exposure of tritium. Tritium is an isotope of hydrogen that has mass number 3. It consists of 1 proton and 2 neutrons (the word ‘tri’ in the name means that...

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The Biological Structure of Water

of Water Water is a substance with the chemical formula H2O: one molecule of water has two hydrogen atoms covalently bonded to a single oxygen atom. Its structure enables it to carry out many important functions in the body. Water molecules are charged, with the oxygen atom being slightly negative and the hydrogen atoms being slightly positive. These opposite charges attract each other, forming hydrogen bonds. These are weak, long distance bonds that are very common and very important in biology...

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Analyzing a Hydrogen Peroxide Solution

Analyzing a Hydrogen Peroxide Solution Purpose: The technological purpose of this investigation is to test and evaluate the percent concentration of consumer solution of hydrogen peroxide. Problem: What is the percent concentration of hydrogen peroxide in a consumer product? Design: An acidic solution of primary standard, iron (II) ammonium sulfate-water (1/6), is prepared and the potassium permanganate standard. A 25.0 mL sample of a consumer solution of hydrogen peroxide is diluted to 1...

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Importance of Water

Describe how hydrogen bonding occurs between water molecules, and relate this and other properties of water, to the roles of water in living organisms. Water is a very small molecule, consisting of two hydrogen atoms covalently bonded to an oxygen atom. However the electrons shared are not done so equally, oxygen is more electronegative and has a firmer hold on the electrons and pulls them slightly towards its nucleus. Due to this, the charge across the molecule of water is not equally distributed...

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Study Guide: Truth

Molecules and Hydrogen Bonding” How Atoms Bond; Examples of Hydrogen Bonds http://www.youtube.com/watch?v=QqjcCvzWwww&list=PL3FE5B87E56E7A849&index=3 10 Describe the atomic components and their bonding in water molecules as an example of a compound having polar covalent bonds. Ch 3.3 “Polarity in Water Molecules and Hydrogen Bonding” http://www.youtube.com/watch?v=6_YhSLnAmVo&list=PL3FE5B87E56E7A849&index=4 11 Explain how the polarity of the water molecule contributes to hydrogen bond formation...

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Beryllium and Magnesium

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 insoluble. That means that you will get a layer of insoluble sulphate on all of these which will slow down the reaction or stop it entirely. In the calcium case, you will get some hydrogen produced together with a white...

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January 2015 Model Answer Written Assignment_Group A

GROUP A MODEL ANSWER Yoshida et al., Flexibility of Hydrogen Bond and Lowering of Symmetry in Proton Conductor, Symmetry 2012, 4, 507-516. DO NOT PLAGIARISE THIS MODEL ANSWER PLAGIARISM FROM ANY SOURCE AUTOMATICALLY LEADS TO A ZERO SCORE Paragraph 1 There are three phases whereby each has a different crystal structure at three different temperatures. At room temperature (298K), Phase III is present whereby Cs3H(SeO4)2 has a crystal structure of a monoclinic with a space group of C2/m. At...

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to which electrons are shared between two atoms. 3. Which of the following statements best sums up the number of covalent bonds that can be formed by the four most common atoms in living things? 4. Which linking verb phrase would best connect the hydrogen bonds term in the map to one of the other terms? 5. Which of the following statements most accurately describes the relative positions of the shared electrons in methane (CH4) and ammonia (NH3)? 6. About twenty-five of the ninety-two natural elements...

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Properties of Gases

formed by chemical reactions. In order to extract the gas I will use several household products such as vinegar, baking soda, water, and hydrogen peroxide in order to create the gases to be tested. Materials: Student Provided 1 Match 1 Toothpicks (or wooden splints) 1 Pie tin or similar 1 Marker pen 1 Household white vinegar 1 3% Hydrogen peroxide (H2O2) 1 Measuring spoons 1 Drinking straw 1 Tissue paper 1 Baking soda (sodium bicarbonate) From LabPaq 1 Goggles-Safety 1...

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Biology notes 7.2

molecule is said to be “polar”? -Because the molecule is a bit like a magnet with two poles. 1b. How do hydrogen bonds between water molecules occur? -The attraction between a hydrogen atom with a partially negative charge. 2b. Why is water such a good solvent? -Because water easily dissolves salts, sugars, minerals, gasses and even other solvents. 3b. The acid hydrogen fluoride can be dissolved in pure water. Will the pH of the solution be greater or less than 7? -The...

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Chemistry Stp

PROBLEM SOLVING. 1. Calculate how many hydrogen atoms are contained in 2.3g of C2H5OH. [2] 2.3 x 1023 Hydrogen Atoms - 2.3g * 1mol/6.06g * 6.02 1023 / 1mol 2. An oxide of sulfur contains 60% by mass of oxygen. Determine the empirical formula of the compound. [2] 3. Ethylene glycol, the substance used in automobile antifreeze, is composed of 38.7 g carbon, 9.7 g hydrogen, and 51.6 g oxygen. a. What is the empirical formula of the compound? ...

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Biological Importance of Water

the molecule which is comprised of two atoms of hydrogen and one atom of oxygen bonded together has many complex properties. The molecule maintains a bent shape due to its tetrahedral arrangement and the negative lone pair of electrons on the oxygen. The electrons from both hydrogen and oxygen are joined covalently but the difference in electronegativity lets the electrons from hydrogen get pulled slightly toward the oxygen therefore making the hydrogen positive and the oxygen negative (a dipole molecule)...

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Modeling Molecules

the following molecules: water, ammonia, carbon dioxide, fluorine, methane, ethane 2. Write the formulas and draw the two-dimensional structures in the table. 3. Chose one color candy to represent each atom of an element (e.g., red jelly bean = hydrogen). Create a key that identifies each element. 4. Use the candy, toothpicks, and/or twist ties to construct a three- dimensional model of each of the aforementioned molecules. 5. Draw, as accurately as possible, each model in the table. 6. Answer...

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Electrolysis Chemistry

electricity through the solution used in electrolysis. During electrolysis, positive and negative electrodes are needed. The positive electrode (anode) experiences oxidation (loses electrons and hydrogen, gains oxygen) , where the negative electrode (cathode) experiences reduction (gains electrons and hydrogen, loses oxygen). In our daily lives, we can see the applications of electrolysis in many ways. The process of electrolysis is used for accumulators (car batteries), electroplating (the covering...

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in yeast During respiration, hydrogen atoms are removed from glucose molecules by enzymes called dehydrogenases and passed to various chemicals called hydrogen acceptors. As the hydrogen atoms pass from one hydrogen acceptor to another, energy is made available for chemical reactions in the cell. In this way, substances such as glucose provide energy for vital reactions in living organisms. In this experiment, a dye called methylene blue acts as an artificial hydrogen acceptor. When this dye is reduced...

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is reduction, and you say that the ions have been reduced. Metal ions and hydrogen ions are positively charged. Whether you get the metal or hydrogen during electrolysis depends on the position of the metal in the reactivity series: The metal will be produced if it is less reactive than hydrogen Hydrogen will be produced if the metal is more reactive than hydrogen The reactivity series of metal - carbon and hydrogen are not metals, but they are shown for comparison So the electrolysis...

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Naming of Ionic Compound

hydrogenPolyatomic anions sometimes gain one or more H+ ions to form anions of a lower charge. These ions are named by adding the word hydrogen or dihydrogen in front of the name of the anion. It is still common to see and use the older naming convention in which the prefixbi- is used to indicate the addition of a single hydrogen ion. HCO3- Hydrogen carbonate or bicarbonateHSO4- Hydrogen sulfate or bisulfateH2PO4- Dihydrogen phosphate Naming Ionic Compounds Key Concepts Positively charged ions are called cations ...

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The Biological Importance of Water

within other compounds. Two hydrogen atoms and an oxygen atom make one molecule of water-in formulae it is written as H2O). At ambient temperatures, the water molecules are at liquid state. This differs with other molecules like hydrogen sulphide which have slightly greater molecular masses and are gasses at room temperatures. The construction of the molecule creates a polar nature. This is in which the electrons are shared unequally. The oxygen atom is larger than the hydrogen atom. The oxygen nucleus...

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Metals | Reaction with oxygen | Reaction with water | Reaction with steam | Reaction with dilute acid | Reduction of oxides by carbon / carbon monoxide | Reduction of oxides by hydrogen | K | Forms oxides and peroxides | Violent, metal darts on surface of water, hissing sound, sparks formed; Metal hydroxide and hydrogen gas formed. | Very Violent reaction | Very Violent | No reaction (Metals are very reactive and form very stable oxides; A lot of energy is required to overcome the strong electrostatic...

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number of moles of hydroxide ions formed when the potassium was added to water. (ii) Calculate the number of moles of hydrogen ions in 100 cm3 of 0.100mol/dm3 hydrochloric acid. (ii) Give an ionic equation to represent the neutralization reaction. Q2. Manganese (IV) oxide catalyses the decomposition of aqueous hydrogen peroxides. In an experiment 50.0 cm3 of aqueous hydrogen peroxide was mixed with 0.50 g of manganese (IV) oxide. The total volume of oxygen formed was measured every 10 seconds...

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Basic Biochemistry Webquest

electrons 18 4. What type of bond form when elements share electrons? Covalent bonds form when elements share electrons. 5. Name a much weaker by important bond in living things. A much weaker but important bond in living things is called a hydrogen bond. Ionic Bonds - Read the text and view the animation. 6. Summarize what happens Ionic bonds- read the text and view the animation 5. Summarize what happens to form ions and what attracts the ions to form an ionic bond. _____________...

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Thermo Chem

standard. [2] ii) Write an equation, with state symbols, for the ΔHØf of water.[1] iii) Explain why the ΔHØf for water is identical to the standard enthalpy change of combustion of hydrogen. [1] b) When calcium is placed in water, aqueous calcium hydroxide is formed and hydrogen is given off. i) Write the equation for the reaction of calcium with water. [1] ii) When 1.00 g of calcium is placed in 200 g of water, the temperature increases by 12.2ºC when the...

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Will We Ever ......... Have Reliable Nuclear Fusion Power?

well, the fuel is radioactive, waste disposal can be problematic, and as the Fukushima disaster showed there is a high cost to accidents. Nuclear fusion is in principle cleaner and comes from a cheaper, more abundant fuel source: an isotope of hydrogen called deuterium can be extracted from water and only helium is produced as waste. From The Matrix to SimCity 2000 to political dreamers, fusion has often been seen as an inevitability for society. However, despite decades of work nuclear fusion...

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Periodic Trends

water magnesium hydroxide + hydrogen gas Mg (s) + H2O (l) Mg(OH)2 (aq) + H2 (g) unbalanced Mg (s) + 2H2O (l) Mg(OH)2 (aq) + H2 (g) (very slow reaction) balanced Magnesium metal + steam magnesium oxide + hydrogen gas Mg (s) + H2O (g) MgO (s) + H2 (g) balanced Calcium metal + cold water calcium hydroxide + hydrogen gas Ca (s) + H2O (l) Ca(OH)2...

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Organic Chemistry Notes Form 6

* MORE IMPORTANT TO HAVE A LOW BOND THAN BRANCH * -ene (double bond), -yne (triple bond), -anol (oxygen then hydrogen), chloro/bromo/fluoro/iodo- (halogen), amino- (nitrogen), -anoic acids (one oxygen with a single, one with a double bond) * If there is a double or triple bond write it just before ene or yne. Eg. But-2-ene * If naming an alcohol (an oxygen and a hydrogen), if there is a double or triple bond, -anol becomes, for example, -ene-2-ol or –yne-3-ol * Make sure you write...

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BIO Quiz 2

protons. it shares hydrogen atoms. it gains or loses neutrons. Question 7 of 20 The symbol 3CO2 represents one atom of oxygen and three atoms of carbon. three atoms of carbon and one molecule of oxygen. three molecules of carbon dioxide. one atom of carbon and three atoms of oxygen. Question 8 of 20 In water, hydrogen bonding occurs between the hydrogen and an oxygen atom in the same molecule. an oxygen atom in a different molecule. a hydrogen atom in a different...

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The Effect of Different Reactants on the Type of Gases Produced

experiment, when oxygen is being tested, a glowing splint will be used and when that splint is placed in to the mystery gas and the splint reignites, then the gas is oxygen. When hydrogen is being tested, a burning splint will be used and when the splint is placed in to the mystery gas and a “pop” sound occurs, then the gas is hydrogen. When carbon dioxide is being tested, limewater will be added to the gas (produced by combining hydrochloric acid and sodium bicarbonate), if the limewater turns cloudy or...

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Grades K-5 Pencil Electrolysis Introduction: The process by which we separate the elements hydrogen and oxygen from water is called electrolysis. The word "lysis" means to dissolve or break apart, so the word "electrolysis" literally means to break something apart (in this case water) using electricity. It is difficult to break up water into it’s elements lots of energy is needed to do that. Through a chemical means though, we can separate the compound of water into the elements that combine to...

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splint near the mouth of the test tube to test for the presence of hydrogen gas. We notice one of the products is lead iodide which is insoluble so it precipitates out and indeed its colour is yellow.  3) Mg + 2 HCl = MgCl2 + H2  3. Electrolysis of water Use a U-tube with electrodes at each end, connected to a battery. Fill the U-tube with water. Turning on the battery, observe the results at each electrode. Next, test for hydrogen and oxygen gas produced at each end of the tube. Electrolysis...

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Solubility of Organic Compounds

solutions formed due to intermolecular attractions between the solute and the solvent. A1. For Water-Soluble Compounds: Acetone – Water: Hydrogen bonding and van der Waals forces Acetone – Diethyl Ether: Dipole – (induced) dipole and van der Waals forces Sucrose – Water: Hydrogen bonding and van der Waals forces Ethyl alcohol – Water: Hydrogen bonding and van der Waals forces Ethyl alcohol – Dietheyl Ether: Dipole – (induced) dipole and van der Waals forces For Acidic Compounds: ...

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Non Hydrocarbon Intermediates

INTRODUCTION From natural gas, crude oils, and other fossil materials such as coal, few intermediates are produced that are not hydrocarbon compounds. The important intermediates discussed here are hydrogen, sulfur, carbon black, and synthesis gas. Synthesis gas consists of a nonhydrocarbon mixture (H2,CO) obtain- able from more than one source. It is included in this chapter and is fur- ther noted in Chapter 5 in relation to methane as a major feedstock for this mixture. This chapter discusses...

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Key Terms Chapter 3 Campbell Biology In Focus

Organic chemistry- special study of chemistry dealing with molecules containing carbon and hydrogen • Hydrocarbon- an organic molecule consisting only of carbon and hydrogen. • Functional groups- a specific configuration of atoms commonly attached to the carbon skeletons of organic molecules and involved in chemical reactions. • Hydroxyl group: a chemical group consisting of an oxygen atom joined to a hydrogen atom. Molecules possessing this group are soluble in water and are called alcohols. •...

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January 2015 Model Answer Written Assignment_Group B

GROUP B MODEL ANSWER Yoshida et al., Flexibility of Hydrogen Bond and Lowering of Symmetry in Proton Conductor, Symmetry 2012, 4, 507-516. DO NOT PLAGIARISE THIS MODEL ANSWER PLAGIARISM FROM ANY SOURCE AUTOMATICALLY LEADS TO A ZERO SCORE Paragraph 1 M3H(XO4)2 compounds are used for electrolytic fuel cells (where M=K, Rb ,Cs; X=S, Se). At different temperatures, the compound exhibits different degrees of symmetry. There are 3 distinct phases observed. Below 369K, the phase 3 structure belongs...

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Compounds Essential to Life

important compounds for living things.  In the water molecule (H2O), the hydrogen and oxygen atoms bond so that the electrical charge is unevenly distributed.  The area of the molecule containing oxygen has a slightly negative charge, and the areas containing hydrogen have slightly positive charges.  Polar Compound: a compound with one side having a negative charge and the other side a positive charge  Hydrogen bonds form between water molecules. • Six Unique Properties of Water 1....

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What to Write About in 1000 Word Persuasive Speech

What is collagen? Collagen is a simple protein made up of amino-acids. Amino acids are built from carbon, oxygen and hydrogen. In fact collagen makes up approximately 30% of the protein within the body. As a structure Collagen is intensely strong and is a vital protein that is found all over the body: In tendons and ligaments. It plays an important role in the protection function of the skin in that it helps limit the absorption and spreading of pathogenic substances, environmental toxins, micro...

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is positively charged hydrogen, so a transfer of electrons takes place between the zinc and the acid. The zinc (Zn0) is oxidized (Zn++ ) and the acid (H+) is reduced to hydrogen gas (H2), which you can see bubbling out around the electrodes. The reaction at the penny electrode depletes the electrons from the copper and attaches them to the hydrogen ions in the phosphoric acid.  Oxidation: Zn --> Zn++ + 2e- (Zinc looses 2 electrons)  Reduction: 2H+ + 2e- -->H2 (Hydrogen ions gain electrons)  ...

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Outline of Carbon and Molecular Diversity of Life

things. * Proteins, DNA, carbohydrates, and other molecules that distinguish living matter from inorganic material are all composed of carbon atoms bonded to each other and to atoms of other elements. * These other elements commonly include hydrogen (H), oxygen (O), nitrogen (N), sulfur (S), and phosphorus (P). (CHONPS) Concept 4.1 Organic chemistry is the study of carbon compounds * The study of carbon compounds, organic chemistry, deals with any compound with carbon (organic compounds)...

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Chapter 2 Course Notes Anatomy and Physiology

liquids are called an inorganic makeup of our body. Liquid takes form of its container. * Gases: no definite shape, carbon dioxide, oxygen, hydrogen gas, and nitrogen gas. Elements: unique substances in our body that cannot be broken down into simpler substances by ordinary means. Four elements that compose our body. * Carbon: * Hydrogen: * Oxygen: * Nitrogen: Make up 96% of our bodies weight. Atoms Defined as the smallest non destructible parts of any element that...

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Lab Enzymes

In this lab students measured the height of the foam after catalysis between catalase (enzyme) and 7 other (solutions) to determine which solution had the fastest reaction rate.. The control variable of the experiment would be the solution of only hydrogen peroxide, water, and catalase. The independent variables of the experiment were the abiotic factors such as PH level, temperature, and the amount of salt within the environment. The dependent variable of the experiment would be the height of the...

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