CHM 151 Exam -2 Questions With Correct Answers

CHM 151 Exam #2 Questions With Correct
Answers


A soluble molecular compound has the ability to conduct electricity:
| | | | | | | | | |



True or False? - CORRECT ANSWER✔✔-False
| | | | |




Which of the following is (are) example(s) of a weak electrolyte?
| | | | | | | | | |




a. HCl
|




b. NH3
|




c. KOH
|




d. HCN
|




e. b and c
| | |




f. b and d - CORRECT ANSWER✔✔-f. b and d
| | | | | | | | |




A reaction that takes place in an aqueous solution and results in the
| | | | | | | | | | | | |



production of a solid substance is an example of a ___ reaction. -
| | | | | | | | | | | | |



CORRECT ANSWER✔✔-precipitation |




When AgNO3 reacts with HCl the products are:
| | | | | | |




a. H2 (g)
| |




b. nitric acid
| |

, c. AgCl (s)
| |




d. AgCl (aq)
| |




e. b and c
| | |




f. b and d - CORRECT ANSWER✔✔-e. b and c
| | | | | | | | |




What is the net ionic equation when HC2H3O2 reacts with NaOH?
| | | | | | | | | |




a. HC2H3O2 (aq) + NaOH (aq) →C2H3O2Na (aq) + H2O (l)
| | | | | | | | | |




b. H^+ (aq) + OH^- (aq) →H2O (l)
| | | | | | |




c. HC2H3O2 (aq) + 2OH^- (aq) → C2H3O2^- (aq) + 2H2O (l)
| | | | | | | | | | |




d. HC2H3O2 (aq) + OH^- → C2H3O2^- (aq) + H2O (l) - CORRECT
| | | | | | | | | | | | |



ANSWER✔✔-d. HC2H3O2 (aq) + OH^- → C2H3O2^- (aq) + H2O (l) | | | | | | | | | |




True or false: Ba(OH)2 is insoluble in water - CORRECT ANSWER✔✔-
| | | | | | | | | |



false


A Bronsted-Lowry acid/base reaction is best defined as:
| | | | | | |




a. combination reaction
| |




b. redox reaction
| |




c. loss of a proton
| | | |




d. a proton transfer reaction - CORRECT ANSWER✔✔-d. a proton
| | | | | | | | | |



transfer reaction |