Name: ______________________
Class: _________________
Date: _________
ID: A
Chapter 11
Multiple Choice
Identify the choice that best completes the statement or answers the question.
____
1. Which of the following combinations of symbol and explanation of symbol is correct when used in a
chemical equation?
a. (g), grams
b. (l), liters
c. (aq), dissolved in water
d. (s), solid product
____
2. Rewrite the following word equation as a balanced chemical equation. What is the coefficient and symbol
for fluorine?
nitrogen trifluoride → nitrogen + fluorine
a. 6F 2
____
b.
F3
c.
d.
6F
3F 2
3. What are the coefficients that will balance the skeleton equation below?
AlCl 3 + NaOH → Al(OH) 3 + NaCl
a.
b.
c.
d.
1,
3,
1,
1,
3,
1,
1,
3,
1,
3,
1,
3,
3
1
3
1
____
4. Which of the following statements is true about what happens in all chemical reactions?
a. The ways in which atoms are joined together is not changed.
b. New atoms are formed as products.
c. The final substances are called reactants.
d. Bonds between atoms are broken and new bonds are formed.
____
5. Chemical equations must be balanced to satisfy
a. the law of definite proportions.
b. the law of multiple proportions.
c. the law of conservation of mass.
d. Avogadro’s principle.
____
6. When the equation KClO 3 (s) → KCl(s) + O 2 (g) is balanced, the coefficient of KClO3 is
a.
b.
c.
d.
1.
2.
3.
4.
1
Name: ______________________
____
7. What are the missing coefficients for the skeleton equation below?
Al 2 (SO 4 ) 3 (aq) + KOH(aq) → Al(OH) 3 (aq) + K 2 SO 4 (aq)
a.
b.
c.
d.
____
ID: A
1,
2,
4,
1,
3, 2, 3
12, 4, 6
6, 2, 3
6, 2, 3
8. The product of a combination reaction is Ba(OH) 2 . If one of the reactants is H 2 O, what is the other
reactant?
a. Ba 2 O
b.
c.
d.
____
BaO
BaH
BaO 2
9. In a double-replacement reaction,
a. the reactants are usually a metal and a nonmetal.
b. one of the reactants is often water.
c. the reactants are generally two ionic compounds in aqueous solution.
d. energy in the form of heat or light is often produced.
____ 10. The complete combustion of which of the following substances produces carbon dioxide and water?
a. C 8 H 18
b.
K 2 CO 3
c.
CaHCO 3
d.
NO
____ 11. The reaction 2Fe + 3Cl 2 → 2FeCl 3 is an example of which type of reaction?
a.
b.
c.
d.
combustion reaction
single-replacement reaction
combination reaction
decomposition reaction
____ 12. The equation H 3 PO 4 + 3KOH → K 3 PO 3 + 3H 2 O is an example of which type of reaction?
a.
b.
c.
d.
double-replacement reaction
combination reaction
decomposition reaction
single-replacement reaction
____ 13. A double-replacement reaction takes place when aqueous cobalt(III) chloride reacts with aqueous lithium
hydroxide. One of the products of this reaction is
a. Co(OH) 3 .
b.
Co(OH) 2 .
c.
LiCo 3 .
d.
LiCl 3 .
2
Name: ______________________
ID: A
____ 14. What is the balanced chemical equation for the reaction that takes place between bromine and sodium
iodide?
a. Br 2 + NaI → NaBr 2 + I
b.
Br 2 + 2NaI → 2NaBr + I 2
c.
Br + NaI 2 → NaBrI 2
d.
Br + NaI 2 → NaBr + I 2
____ 15. What is the driving force in the following reaction?
Ni(NO 3 ) 2 (aq) + K 2 S(aq) →
a.
b.
c.
d.
A gas is formed.
A precipitate is formed.
Ionic compounds are reactants.
Ionic compounds are products.
Short Answer
16. Balance the following equation.
NaClO 3 → NaCl + O 2
17. Balance the following equation.
Ba + H 2 O → Ba(OH) 2 + H 2
18. Complete and balance the following equation.
Fe 2 (SO 4 ) 3 + Ba(OH) 2 →
19. Balance the following equation. Indicate whether combustion is complete or incomplete.
C 3 H 8 + O 2 → CO + H 2 O
20. Complete and balance the following equation and indicate the precipitate, if any:
K 3 PO 4 (aq) + BaCl 2 (aq) →
3
ID: A
Chapter 11
Answer Section
MULTIPLE CHOICE
1. ANS: C
PTS: 1
DIF: L2
REF: p. 348
OBJ: 11.1.1 Describe how to write a skeleton equation.
BLM: comprehension
2. ANS: D
PTS: 1
DIF: L2
REF: p. 351 | p. 352 | p. 353
OBJ: 11.1.2 Describe the steps for writing and balancing a chemical equation.
BLM: analysis
3. ANS: A
PTS: 1
DIF: L2
REF: p. 351 | p. 352 | p. 353
OBJ: 11.1.2 Describe the steps for writing and balancing a chemical equation.
BLM: application
4. ANS: D
PTS: 1
DIF: L2
REF: p. 350
OBJ: 11.1.2 Describe the steps for writing and balancing a chemical equation.
BLM: comprehension
5. ANS: C
PTS: 1
DIF: L2
REF: p. 350
OBJ: 11.1.2 Describe the steps for writing and balancing a chemical equation.
BLM: comprehension
6. ANS: B
PTS: 1
DIF: L2
REF: p. 351 | p. 352 | p. 353
OBJ: 11.1.2 Describe the steps for writing and balancing a chemical equation.
BLM: analysis
7. ANS: D
PTS: 1
DIF: L2
REF: p. 351 | p. 352 | p. 353
OBJ: 11.1.2 Describe the steps for writing and balancing a chemical equation.
BLM: analysis
8. ANS: B
PTS: 1
DIF: L2
REF: p. 356 | p. 366
OBJ: 11.2.1 Describe the five general types of reactions.
BLM: analysis
9. ANS: C
PTS: 1
DIF: L2
REF: p. 362
OBJ: 11.2.1 Describe the five general types of reactions.
BLM: comprehension
10. ANS: A
PTS: 1
DIF: L2
REF: p. 363
OBJ: 11.2.1 Describe the five general types of reactions.
BLM: application
11. ANS: C
PTS: 1
DIF: L2
REF: p. 356 | p. 366
OBJ: 11.2.1 Describe the five general types of reactions.
BLM: comprehension
12. ANS: A
PTS: 1
DIF: L2
REF: p. 362 | p. 367
OBJ: 11.2.1 Describe the five general types of reactions.
BLM: comprehension
13. ANS: A
PTS: 1
DIF: L2
REF: p. 362 | p. 367
OBJ: 11.2.1 Describe the five general types of reactions.
BLM: analysis
14. ANS: B
PTS: 1
DIF: L2
REF: p. 360 | p. 366
OBJ: 11.2.1 Describe the five general types of reactions.
BLM: analysis
15. ANS: B
PTS: 1
DIF: L3
REF: p. 367 | p. 372
OBJ: 11.2.1 Describe the five general types of reactions. | 11.3.2 Predict the formation of a precipitate
in a double-replacement reaction.
BLM: analysis
1
ID: A
SHORT ANSWER
16. ANS:
2NaClO 3 → 2NaCl + 3O 2
PTS: 1
DIF: L2
REF: p. 352
OBJ: 11.1.2 Describe the steps for writing and balancing a chemical equation.
BLM: application
17. ANS:
Ba + 2H 2 O → Ba(OH) 2 + H 2
PTS: 1
DIF: L2
REF: p. 352
OBJ: 11.1.2 Describe the steps for writing and balancing a chemical equation.
BLM: analysis
18. ANS:
Fe 2 (SO 4 ) 3 + 3Ba(OH) 2 → 2Fe(OH) 3 + 3BaSO 4
PTS: 1
DIF: L3
REF: p. 352 | p. 367
OBJ: 11.1.2 Describe the steps for writing and balancing a chemical equation. | 11.2.1 Describe the five
general types of reactions.
BLM: analysis
19. ANS:
2C 3 H 8 + 7O 2 → 6CO + 8H 2 O (incomplete)
PTS: 1
DIF: L3
REF: p. 352 | p. 367
OBJ: 11.1.2 Describe the steps for writing and balancing a chemical equation. | 11.2.1 Describe the five
general types of reactions.
BLM: analysis
20. ANS:
2K 3 PO 4 (aq) + 3BaCl 2 (aq) → Ba 3 (PO 4 ) 2 (s) + 6KCl(aq)
PTS: 1
DIF: L3
REF: p. 367 | p. 372
OBJ: 11.2.1 Describe the five general types of reactions. | 11.3.2 Predict the formation of a precipitate
in a double-replacement reaction.
BLM: analysis
2