Hydrogen carbonate - Study guides, Class notes & Summaries
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Edexcel iGCSE Chemistry, question and answer with rated solution
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Edexcel iGCSE Chemistry, question and answer with rated solution 
Experiment for Diffusion? 
1) HCl placed at one end of the test tube, ammonia solution at the other. 
2) Where they meet, a ring of Ammonium Chloride appears. 
3) The diagram shows that the ammonia is closer to the ring, showing that ammonia must have travelled faster, showing it's a lighter gas. 
 
 
 
Experiment for Dilution? 
1) Put a coloured substance in a solvent e.g food colouring in water. 
2) Over the time, the colour le...
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Sample Chemistry Placement Exam Questions with Certified Answers
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Sample Chemistry Placement Exam 
Questions with Certified Answers 
 
Answer: Oxygen 
Aluminum forms a +3 ion. In order for the formula unit Al2X3 to be electrically neutral, the 
element X must form a -2 ion. Nonmetals in the oxygen column do this. Of these elements, only 
oxygen is a diatomic gas. 
Aluminum reacts with element X to form a compound with the formula A2X3. Element X exists 
as diatomic molecules, X2, in the gaseous state at normal temperature and pressure. Element 
X must be? 
 
A...
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Test Bank For Chemistry The Molecular Science 5th Edition by John W. Moore
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Chapter 3: Chemical Reactions 
1. Which of the following cannot be determined from a balanced chemical equation? 
a. b. c. d. e. 
ANSWER: POINTS: TOPICS: OTHER: 
The number of molecules of reactants and products. The number of atoms of each element reacting. 
The number of moles of reactants and products. The relative mass of each reactant and product. Whether the reaction will proceed as written. 
e 
1 
3.1 Chemical Equations Comprehension 
2. In the reaction given below, if 12 moles of aluminu...
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Chemistry 101 WSU Finnegan Exam 1 with Complete Solutions
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Chemistry 101 WSU Finnegan Exam 1 
 
with Complete Solutions 
 
NH4+ Ammonium ion 
 
SO4 2- Sulfate ion 
 
NO3- Nitrate ion 
 
OH- hydroxide ion 
 
PO4 3- Phosphate ion 
 
CO3 2- carbonate ion 
 
C2H3O2- acetate ion 
 
SO3 2- sulfite ion 
 
HSO3- Hydrogen Sulfite 
 
HSO4 - Hydrogen Sulfate 
 
S2O3 2- thiosulfate ion 
 
HCO3- Hydrogen Carbonate 
 
HPO4 2- hydrogen phosphate 
 
H2PO4- dihydrogen phosphate 
 
CrO4 2- chromate 
 
Cr2O7 2- dichromate ion 
 
NO2- Nitrite ion 
 
ClO- hypochlorite 
 
Cl...
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BMAT SECTION 2 CHEMISTRY PRACTICE QUESTIONS AND ANSWERS
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Test for hydrogen Squeaky pop 
 
Test for a Carbonate anion (CO32-) React with an acid to release carbon dioxide gas. Effervescence is observed and the production of carbon dioxide can be confirmed using limewater. 
ALTERNATIVLEY: 
A solution of a carbonate will also be alkaline, which can be shown using universal indicator or a pH probe. 
 
Ionic equation when testing for a carbonate anion: 2H+(aq) + CO32−(aq) → H2O(l) + CO2(g) 
 
Silver compounds are all ______________ except for ________...
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CWEA Grade I Laboratory Analyst Questions and Answers Graded A
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CWEA Grade I Laboratory Analyst Questions and Answers Graded A Chloride - Major anion found in many natural waters - Can impart salty taste in H2O 
What increases concentration of chloride in wastewater Chloride in human diet and softeners flushed into sanitary sewer system 
2 most prevalent methods of measuring chloride argentometric and mercuric nitrate 
Argentometric Titration of sample with standard solution of silver nitrate (AgNO3) - Indicator: Chromate ions (CrO4) - End point: reddish sil...
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exam 1 chm 1045 (Questions & Answers) Rated 100% Correct!!
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(CO3)2- - carbonate ion 
(NO3)- - nitrate 
(PO4)3- - phosphate ion 
(SO3)2- - sulfite ion 
(SO4)2- - sulfate ion 
1 Cal = ? cal - 1000 cal 
1 cal = ? J - 4.18 J 
1 ft = ? in - 12 in 
1 gal = ? qt - 4 qt 
1 in = ? cm - 2.54 cm 
1 lb = ? g - 454 g 
1 lb = ? oz - 16 oz 
1 mi = ? ft - 5280 ft1 qt = ? L - 0.946 L 
1 qt = ? pt - 2 pt 
1 ton = ? lbs - 2000 lbs 
1 yd = ? ft - 3 ft 
actinides - the 14 elements with atomic numbers from 90 (thorium, Th) to 103 (lawrencium, Lr) 
Ag - silver 
Ag+ - silver io...
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Multiple Choice QUESTIONS IN CHEMISTRY 1000+ MCQs FOR ALL COMPETITIVE EXAMS
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Multiple Choice QUESTIONS IN 
CHEMISTRY 
1000+ MCQs FOR ALL COMPETITIVE EXAMS 
 
 
 
 
 
Compiled by: 
 
 
 
 
 
The soul of chemistry is dealing with	? 
 
Internal structural changes in matter 
Composition of matter 
Properties of matter 
Composition and properties of matter 
 
The radioactive isotope of hydrogen is called	? 
 
tritium 
deuterium 
protium 
ortho-hydrogen 
 
Electron was discovered by? 
 
Michael Faraday 
James Maxwell 
Yuri Gagarin 
J.J Thomson 
 
Sodium carbonate is produced b...
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REHS Practice Test Questions and Answers 100% Accurate
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REHS Practice Test Questions and Answers 100% Accurate 
Soil permeability procedure involves evaluating a soil core or test pit. What does the procedure yield? 
 
a. Permeability estimated seepage rate 
b. Permeability estimated application rate 
c. Permeability estimated range 
b. Permeability estimate 
 
 
 
How does chlorine kill microorganisms and bacteria? 
 
a. By weakening enzymes and destroying internal organelles 
b. By attacking lipids in cell walls and destroying enzymes and structure...
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chem 1305 exam 1 TTU (Questions & Answers) Passed!!
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density formula - Answer-D=m/v 
Celcius to Kelvin - Answer-K=C+273 
Ideal Gas Law Equation - Answer-PV=nRT 
Filtration - Answer-a difference in phase (solids and liquids) or (liquid and gases) 
Distillation - Answer-A process that separates the substances in a solution based on their boiling 
points 
compound rule #1 - Answer-combines a metal and nonmetal 
1. Name the metal first 
2. Name the nonmetal second 
3. Add -ide suffix to the nonmetal 
compound rule #2 - Answer-combines 2 nonmetals 
1. ...
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