copper sulphate solution? b) Some copper pieces into green ferrous sulphate solution? c) An iron nail into blue copper sulphate solution? Q2.Complete and balance the following equations: a) Zn + O2 b) Pb + O2 c) Cu + O2 d) Mg + H2O e) Al + HCl f) MgO + H2O g) K2O + H2O h) Cu + HCl __________________ _____________________________ _____________________________ ______________________ _____________________ ____________________ __________________ ___________________ Q3. Give one example of each:
Premium Copper Silver Zinc
Title: Investigate the reactions of Group-2 elements. Objective: To be able to describe the redox reactions of Group-2 elements with oxygen and water To be able to identify trends of reactivity down the Group-2 Equipment required: 2 x250 cm3 beaker Funnel 2x boiling tubes Crucible tongs Calcium granules Magnesium ribbon Magnesium powder Spatula Universal Indicator Thermal mat Filter paper Safety: Wear eye protection. Magnesium and calcium are highly flammable. Calcium hydroxide
Premium Magnesium Alkaline earth metal Calcium
UNIVERSITY OF PRETORIA UNIVERSITEIT VAN PRETORIA ` DEPARTEMENT OF CHEMISTRY DEPARTMENT CHEMIE DATE / DATUM: TIME / TYD: MARKS / PUNTE: 2008.05.30 120 min 80 Outeursreg voorbehou Fakulteit Natuur- en Landbouwetenskappe CHM 171 EXAMINATION / EKSAMEN Internal Examiners / Interne Eksaminatore: External Examiner / Eksterne Eksaminator: Surname and Initials Van en Voorletters Signature Handtekening Dr FR Vogel Dr RJ Bowen Dr EMM Venter Prof WJ Schoeman Student number Studentenommer Marks
Premium
the chemistry lab: including magnesium‚ methanol‚ and fire. This was to make what we are doing on paper in class a real life circumstance. Analysis questions 1) A) Part A 2Mg+O2 à(delta/heat) 2MgO Part B 2CuCO2 à(delta) 2Cu+CO2+O2 Part C Zn+HCl à H2 Part D CuCl2+2NaOHà 2NaCl+ Cu(OH)2
Premium Chemistry Chemical reaction Experiment
○ if it was nh4no3 it would not form precipitate when you add agno3 im pretty sure ○ What else can we say about NH4Cl? ○ was there bubbles with hcl? if so‚ then it can be co3 2 (carbonate) ● Unknown 6 ● KOH ○ basic ○ flame test ○ did not react with naoh therefore it can contain oh‚ i guess ● Unknown 7 ● HCl ○ ○ ○ ○ ● Unknown 8 ● Ca(OH)2 ○ was soluble with naoh therefore
Premium Solubility Sodium chloride Sodium hydroxide
UTAR FHSC1134 Inorganic Chemistry Trimester 3 Experiment 1 ________________________________________________________________________ Title: Investigating the Properties of Period 3 Oxides Aim: To examine the oxides of Period 3 elements and describe their structure and bonding. Introduction: Generally‚ there are oxides of metals and non-metals. Metals burn in oxygen to form basic oxides while non-metals form acidic oxides. Structurally‚ they are covalent or ionic compounds. You are to
Free Sodium hydroxide Ammonia Solubility
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 Oxygen Oxide Chlorine
CUMULATIVE MOLE WORKSHEET (Chemistry IB) 1. How many molecules are present in 27.0 g of distilled water? A. 2.7 x 1024 B. 1.5 C. 9.0 x 1023 D. 4.5 2. How many moles of carbon dioxide will be formed when 32.0 g of methane‚ CH4‚ burns completely in oxygen? A. 1.0 B. 2.0 C. 4.0 D. 8.0 3. How many oxygen atoms are present in 0.5 mole of pentahydrated copper(II) sulfate‚ CuSO4.5H2O? A. 2.5 B. 4.5 C. 3.0 x 1023 D. 2.7 x 1024 4. What is the total number of atoms in 3.0 molecules of propanone‚ CH3COCH3
Premium Oxygen Molecule Sodium hydroxide
complains of SOB 3 to 4 times a day. HISTORY AND PHYSICAL 7. mg Milligram One thousandths of a gram. Prescribed weights of different prescribed medications Jane Dare takes Digoxin 0.125 mg HISTORY AND PHYSICAL 8. po By mouth. Oral medication route Furosemide 40 mg po PHYSICIAN’S ORDERS AND PROGRESS NOTES 9. tid Titrated initial dose. a unit of information. Jane dare prescription was Capoten 25 mg po tid. HISTORY & PHYSICAL 10. qd 4 times daily. To take 4 times
Premium Tuberculosis Mantoux test Physician
ppt = No K+ or H4N+ Blue Litmus test for H4N+: -Mix the sample in DIW -Add 6M NaOH -Suspend damp red litmus -Observe - red litmus turns blue = H4N+ pH test: -Test sample solution with Indicators -2 HSO4 ; 3-5 Al(OH2)63+;4 Cu2+; 5-6 (NH4 ‚ Mg(OH2)62+‚Zn(OH2)62+ ; 7 neutral ions (Ag+‚ Na+‚ K+‚ Ca2+‚) ; 13 OH- ; Test for Cl-: -add 1M HONO2 till solution is acidic test -Add 1 drop of 0.02M AgNO3 to small amount of sample solution -Stir and observe - if solution turns cloudy = Cl- Test
Premium Solubility Carbon dioxide PH indicator