Assessment Chapter Test A Teacher Notes and Answers

Name:______________________________Class: _________________ Date: _________________

Assessment

Chapter Test A
Teacher Notes and Answers
18 Chemical Equilibrium
TEST A
1. a 14. d
2. c 15. d
3. b 16. b
4. d 17. b
5. c 18. c
6. a 19. b
7. c 20. c
8. b 21. a
9. d 22. a
10. a 23. c
11. a 24. c
12. a 25. c
13. c




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Modern Chemistry 1 Chapter Test
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, Name:______________________________Class: _________________ Date: _________________

Assessment

Chapter Test A
Chapter: Chemical Equilibrium
In the space provided, write the letter of the term or phrase that best completes
each statement or best answers each question.
_____ 1. A 15.0 mL volume of 0.0100 M Pb(NO3)2 is added to 15.0 mL of
0.0100 M NaI. A precipitate is formed, and equilibrium is established.
The Ksp equilibrium expression for the dissolution of PbI2 is
a. [Pb2 + ][I
]2 .
b. [Pb][I2 ].
c. [Pb2 + ][2I
]2 .
d. 2[Pb2 + ][I
].
_____ 2. What is the ion product for the PbI2 reaction in question 1?
a. 1.00  10
8
b. 1.25  10
7
c. 1.00  10
6
d. 2.5  10
5
_____ 3. What is the equilibrium expression for the following equation?
3+

 Fe ( aq ) + 3OH ( aq )
Fe(OH) 3 (aq ) 
[Fe 3+ ][OH
]
a.
[Fe(OH) 3 ]
[Fe 3+ ][OH
]3
b.
[Fe(OH) 3 ]
[Fe(OH) 3 ]
c.
[Fe 3+ ][OH
]3
[Fe(OH) 3 ]
d.
[Fe 3+ ][OH
]
_____ 4. In a bottle of unopened cola, the CO2 gas dissolved in the liquid is in
equilibrium with the CO2 gas above the liquid. The dissolved gas reacts
with water molecules in the cola to form carbonic acid, which also
dissociates into carbon dioxide and water. Which chemical equation(s)
best describe this equilibrium system?
a. CO 2 ( g ) 

CO 2 (l )
 
b. CO 2 ( g )
CO 2 (aq ) and CO 2 (l ) + H 2 O(l )
H 2 CO 3 (aq )

c. CO 2 ( g )
CO 2 (aq )
 
d. CO 2 ( g )
CO 2 (aq ) and CO 2 (aq ) + H 2 O(l )
H 2 CO 3 (aq )




Original
This study source was content Copyright
downloaded © by Holt, Rinehart
by 100000899606070 fromandCourseHero.com
Winston. Additionson
and09-29-2025
changes to the original GMT
12:50:15 content-05:00
are the responsibility of the instructor.
Modern Chemistry 2 Chapter Test
https://www.coursehero.com/file/151487740/hssc1800t-chaptest-apdf/