CHEM 151 Exam 2 with |! |! |! |! |!
accurate detailed solutions |! |!
A soluble molecular compound has the ability to conduct electricity: True or False? -
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Correct answer ✔False |! |!
Which of the following is (are) example(s) of a weak electrolyte?
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a. HCl
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b. NH3|!
c. KOH
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d. HCN|!
e. b and c
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f. b and d - Correct answer ✔f. b and d
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A reaction that takes place in an aqueous solution and results in the production of a
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solid substance is an example of a ___ reaction. - Correct answer ✔precipitation
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When AgNO3 reacts with HCl the products are:
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a. H2 (g)
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b. nitric acid
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c. AgCl (s)
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d. AgCl (aq)
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e. b and c
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f. b and d - Correct answer ✔e. b and c
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, What is the net ionic equation when HC2H3O2 reacts with NaOH?
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a. HC2H3O2 (aq) + NaOH (aq) →C2H3O2Na (aq) + H2O (l)
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b. H^+ (aq) + OH^- (aq) →H2O (l)
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c. HC2H3O2 (aq) + 2OH^- (aq) → C2H3O2^- (aq) + 2H2O (l)
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d. HC2H3O2 (aq) + OH^- → C2H3O2^- (aq) + H2O (l) - Correct answer ✔d. HC2H3O2 (aq)
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+ OH^- → C2H3O2^- (aq) + H2O (l)
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True or false: Ba(OH)2 is insoluble in water - Correct answer ✔false
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A Bronsted-Lowry acid/base reaction is best defined as:
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a. combination reaction
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b. redox reaction
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c. loss of a proton
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d. a proton transfer reaction - Correct answer ✔d. a proton transfer reaction
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A diprotic acid has ___ acidic protons.
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a. many
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b. 2 |!
c. 3 |!
d. 4 - Correct answer ✔b. 2
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The gas formed when Na2S reacts with H2SO4 is:
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a. SO3|!
b. SO2|!
c. H2S
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d. Cl2 - Correct answer ✔c. H2S
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accurate detailed solutions |! |!
A soluble molecular compound has the ability to conduct electricity: True or False? -
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Correct answer ✔False |! |!
Which of the following is (are) example(s) of a weak electrolyte?
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a. HCl
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b. NH3|!
c. KOH
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d. HCN|!
e. b and c
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f. b and d - Correct answer ✔f. b and d
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A reaction that takes place in an aqueous solution and results in the production of a
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solid substance is an example of a ___ reaction. - Correct answer ✔precipitation
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When AgNO3 reacts with HCl the products are:
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a. H2 (g)
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b. nitric acid
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c. AgCl (s)
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d. AgCl (aq)
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e. b and c
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f. b and d - Correct answer ✔e. b and c
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, What is the net ionic equation when HC2H3O2 reacts with NaOH?
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a. HC2H3O2 (aq) + NaOH (aq) →C2H3O2Na (aq) + H2O (l)
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b. H^+ (aq) + OH^- (aq) →H2O (l)
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c. HC2H3O2 (aq) + 2OH^- (aq) → C2H3O2^- (aq) + 2H2O (l)
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d. HC2H3O2 (aq) + OH^- → C2H3O2^- (aq) + H2O (l) - Correct answer ✔d. HC2H3O2 (aq)
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+ OH^- → C2H3O2^- (aq) + H2O (l)
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True or false: Ba(OH)2 is insoluble in water - Correct answer ✔false
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A Bronsted-Lowry acid/base reaction is best defined as:
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a. combination reaction
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b. redox reaction
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c. loss of a proton
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d. a proton transfer reaction - Correct answer ✔d. a proton transfer reaction
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A diprotic acid has ___ acidic protons.
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a. many
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b. 2 |!
c. 3 |!
d. 4 - Correct answer ✔b. 2
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The gas formed when Na2S reacts with H2SO4 is:
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a. SO3|!
b. SO2|!
c. H2S
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d. Cl2 - Correct answer ✔c. H2S
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