Exam 9: Chemical Change
Exam 2: Matter and Energy50 Questions
Exam 3: Measurement and Chemical Calculations48 Questions
Exam 4: Introduction to Gases56 Questions
Exam 5: Atomic Theory: The Nuclear Model of the Atom48 Questions
Exam 6: Chemical Nomenclature45 Questions
Exam 7: Chemical Formula Relationships45 Questions
Exam 8: Chemical Reactions44 Questions
Exam 9: Chemical Change52 Questions
Exam 10: Quantity Relationships in Chemical Reactions42 Questions
Exam 11: Atomic Theory: The Quantum Model of the Atom50 Questions
Exam 12: Chemical Bonding45 Questions
Exam 13: Structure and Shape47 Questions
Exam 14: The Ideal Gas Law and Its Applications47 Questions
Exam 15: Gases, Liquids, and Solids45 Questions
Exam 16: Solutions47 Questions
Exam 17: Acidbase Proton Transferreactions45 Questions
Exam 18: Chemical Equilibrium45 Questions
Exam 19: Oxidationreduction Electron Transferreactions45 Questions
Exam 20: Nuclear Chemistry50 Questions
Exam 21: Organic Chemistry45 Questions
Exam 22: Biochemistry45 Questions
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Write the net ionic equation for the reaction that occurs,if any,when gold is placed in a solution of hydrobromic acid.Hydrogen gas is above gold in the activity series.What are the products?
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(Multiple Choice)
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Correct Answer:
E
Write the net ionic equation for the reaction between copper and AgC2H3O2.The apparatus for the reaction is shown below.
Regard all salts containing acetate ion as soluble in water.Copper is above silver in the activity series.What will appear on the product side of the balanced net ionic equation?
Free
(Multiple Choice)
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Correct Answer:
B
What ions are present in an aqueous solution of hydrochloric acid?
Free
(Multiple Choice)
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Correct Answer:
C
What ions are present in what ratio in a solution of aqueous (NH4)2SO4?
(Multiple Choice)
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Which of the following is the best description of what happens when a weak acid is placed in water?
(Multiple Choice)
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What are the reactants in the net ionic equation for the reaction that has magnesium phosphate as the only solid product?
(Multiple Choice)
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Which of the following is a product of a reaction that will always be included in the net ionic equation for the reaction?
(Multiple Choice)
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Which of the following combinations of reactant does not produce a net change as shown by a net ionic equation?
(Multiple Choice)
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What is the preferred way to write H2CO3 when it appears as a product in a net ionic equation?
(Multiple Choice)
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Propane,C3H8,is burned as a fuel in heating homes.Write the balanced chemical equation for this reaction.What is the coefficient for CO2?
(Multiple Choice)
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Which of the following gives the correct formulas and ratio of ions present when sodium carbonate is dissolved in water?
(Multiple Choice)
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Which of the following is the best explanation of why a strong acid is an excellent conductor?
(Multiple Choice)
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Write the net ionic equation for the reaction that occurs,if any,when a calcium chip is dropped into a hydrochloric acid solution.Calcium is above hydrogen in the activity series.What are the reactants (with appropriate coefficients)?
(Multiple Choice)
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In the balanced net ionic equation for the reaction of solid CaCO3 and aqueous hydrochloric acid,which produces aqueous chloride and an acid that decomposes into the other two products,what appears on the left side of the net ionic equation?
(Multiple Choice)
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Which of the following is the best explanation of why a weak acid is a poor conductor?
(Multiple Choice)
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Write the equation for the complete oxidation of HC2H3O2.What is the sum of the coefficients?
(Multiple Choice)
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What ions are present in what ratio in a solution of aqueous calcium chloride?
(Multiple Choice)
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Which of the following correctly describes an electric current?
i.Spontaneous flow of protons in gold,silver,copper,or aluminum wires
ii.Exchange of protons between cations in a solution
iii.The movement of ions in a solution
iv.The movement of negatively charged electrons in a metal
(Multiple Choice)
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