Chapter 4 Part 1 Practice
Student: ___________________________________________________________________________
1.
Which of these compounds is a strong electrolyte?
A. H2O
B. O2
C. H2SO4
D. C6H12O6 (glucose)
E. CH3COOH (acetic acid)
2.
Which of these compounds is a weak electrolyte?
A. HCl
B. CH3COOH (acetic acid)
C. C6H12O6 (glucose)
D. O2
E. NaCl
3.
Which of these compounds is a nonelectrolyte?
A. NaOH
B. HNO3
C. C2H6O (ethanol)
D. KF
E. CH3COOH (acetic acid)
4.
Identify the major ionic species present in an aqueous solution of Na2CO3.
A. Na2+, CO32B. Na2+, C2-, O3
C. Na+, C4+, O32D. Na+, C+, O2E. Na+, CO32-
5.
The distinguishing characteristic of all electrolyte solutions is that they
A. contain molecules.
B. conduct electricity.
C. react with other solutions.
D. always contain acids.
E. conduct heat.
6.
Based on the solubility rules, which one of these compounds should be insoluble in water?
A. NaCl
B. MgBr2
C. FeCl2
D. AgBr
E. ZnCl2
7.
Based on the solubility rules, which one of these compounds should be insoluble in water?
A. Na2SO4
B. BaSO4
C. CuSO4
D. MgSO4
E. Rb2SO4
8.
Based on the solubility rules, which one of these compounds should be insoluble in water?
A. CaCO3
B. (NH4)2CO3
C. Na2CO3
D. K2CO3
E. KNO3
9.
Based on the solubility rules, which one of these compounds should be soluble in water?
A. Hg2Cl2
B. Na2S
C. Ag2CO3
D. Ag2S
E. BaSO4
10. Based on the solubility rules, which one of these compounds should be soluble in water?
A. AgBr
B. AgCl
C. Ag2CO3
D. AgNO3
E. Ag2S
11. Based on the solubility rules, which one of these compounds should be soluble in water?
A. (NH4)3PO4
B. Ca3(PO4)2
C. AlPO4
D. Ag3PO4
E. Mg3(PO4)2
12. Based on the solubility rules, which of these processes will occur when a solution containing about 0.1 g of Pb(NO3)2(aq) is
mixed with a solution containing 0.1 g of KI(aq)/100 mL?
A. KNO3 will precipitate; Pb2+ and I- are spectator ions.
B. No precipitate will form.
C. Pb(NO3)2 will precipitate; K+ and I- are spectator ions.
D. PbI2 will precipitate; K+ and NO3- are spectator ions.
E. Pb2+ and I- are spectator ions, and PbI2 will precipitate.
13. Based on the solubility rules, which of these processes will occur if solutions of CuSO4(aq) and BaCl2(aq) are mixed?
A. CuCl2 will precipitate; Ba2+ and SO42- are spectator ions.
B. CuSO4 will precipitate; Ba2+ and Cl- are spectator ions.
C. BaSO4 will precipitate; Cu2+ and Cl- are spectator ions.
D. BaCl2 will precipitate; Cu2+ and SO42- are spectator ions.
E. No precipitate will form.
14. Based on the solubility rules, which of these processes will occur when solutions of ZnSO4(aq) and MgCl2(aq) are mixed?
A. ZnCl2 will precipitate; Mg2+ and SO42- will be spectator ions.
B. ZnSO4 will precipitate; Mg2+ and Cl- will be spectator ions.
C. MgSO4 will precipitate; Zn2+ and Cl- will be spectator ions.
D. MgCl2 will precipitate; Zn2+ and SO42- will be spectator ions.
E. No precipitate will form.
15. The common constituent in all acid solutions is
A. H2.
B. H+.
C. OH-.
D. H2SO4.
E. Cl-.
16. Identify the major ions present in an aqueous LiOH solution.
A. Li2+, O-, HB. Li+, OHC. LiO-, H+
D. Li+, O2-, H+
E. Li-, OH+
17. Identify the major ions present in an aqueous HNO3 solution.
A. HN+, O2B. OH-, NO3C. OH-, NO
D. H+, N3-, O2E. H+, NO318. What is the correct formula of the salt formed in the neutralization reaction of hydrochloric acid with calcium hydroxide?
A. CaO
B. CaCl2
C. CaH2
D. CaCl
E. CaClH
19. What is the chemical formula of the salt produced by the neutralization of nitric acid with calcium hydroxide?
A. CaNO3
B. Ca2(NO3)3
C. Ca3(NO3)2
D. Ca2NO3
E. Ca(NO3)2
20. What is the chemical formula of the salt produced by the neutralization of potassium hydroxide with sulfuric acid?
A. KSO3
B. K2(SO4)3
C. K2SO4
D. K(SO4)2
E. KSO4
21. The oxidation number of N in NaNO3 is
A. +6.
B. +5.
C. +3.
D. -3.
E. none of these.
22. The oxidation number of S in K2SO4 is
A. +6.
B. +4.
C. +2.
D. -1.
E. none of these.
23. The oxidation number of Mn in KMnO4 is
A. +8.
B. +7.
C. +5.
D. -7.
E. -8.
24. The oxidation number of Cr in Cr2O72- is
A. -12.
B. -7.
C. -2.
D. +6.
E. +7.
25. The oxidation number of Cl in ClO3- is
A. -1.
B. +7.
C. +5.
D. +3.
E. none of these.
26. The oxidation number of N in N2H4 is
A. +4.
B. -4.
C. +2.
D. -2.
E. 0.
27. Which choice gives the correct oxidation numbers for all three elements in Rb2SO3 in the order that the elements are shown in
the formula?
A. -2, +6, -2
B. -1, +4, -3
C. +2, +4, -2
D. +1, +4, -2
E. +1, +6, -6
28. Which one of these equations describes a redox reaction?
A. 2Al(s) + 3H SO (aq) → Al (SO ) (aq) + 3H (g)
2
4
2
4 3
2
B. 2KBr(aq) + Pb(NO ) (aq) → 2KNO (aq) + PbBr (s)
3 2
3
2
C. CaBr (aq) + H SO (aq) → CaSO (s) + 2HBr(g)
2
2
4
4
D. H+(aq) + OH-(aq) → H O(l)
2
E. CO 2-(aq) + HSO -(aq) → HCO -(aq) + SO 2-(aq)
3
4
3
4
29. Which of these equations does not represent an oxidation-reduction reaction?
A. 3Al + 6HCl → 3H + AlCl
2
3
B. 2H O → 2H + O
2
2
2
C. 2NaCl + Pb(NO ) → PbCl + 3NaNO
3 2
2
3
D. 2NaI + Br → 2NaBr + I
2
2
E. Cu(NO ) + Zn → Zn(NO ) + Cu
3 2
3 2
30. In the chemical reaction 5H O + 2MnO - + 6H+ → 2Mn2+ + 8H O + 5O , the oxidizing agent is
2 2
4
2
2
A. H2O2.
B. MnO4-.
C. H+.
D. Mn2+.
E. O2.
31. In the chemical reaction 5S + 6KNO + 2CaCO → 3K SO + 2CaSO + CO + 3N , the oxidizing agent is
3
3
2
4
4
2
2
A. S.
B. N2.
C. KNO3.
D. CaSO4.
E. CaCO3.
32. Identify the reducing agent in the chemical reaction
5Fe2+(aq) + MnO4-(aq) + 8H+(aq)→ 5Fe3+(aq) + Mn2+(aq) + 4H2O(l).
A. Fe2+
B. MnO4C. H+
D. Mn2+
E. Fe3+
33. Identify the reducing agent in the chemical reaction
Cd + NiO2 + 2H2O → Cd(OH)2 + Ni(OH)2.
A. Cd
B. NiO2
C. H2O
D. Cd(OH)2
E. Ni(OH)2
34. What element is oxidized in the chemical reaction
3Cu + 8HNO3 → 3Cu(NO3)2 + 2NO + 4H2O?
A. Cu
B. H
C. N
D. O
E. H2O
35. What element is oxidized in the chemical reaction
NiO2 + Cd + 2H2O → Ni(OH)2 + Cd(OH)2?
A. Ni
B. Cd
C. O
D. H
E. This is not a redox reaction.
36. What element is reduced in the chemical reaction
Cu + 2H2SO4 → CuSO4 + SO2 + 2H2O?
A. Cu
B. H
C. S
D. O
E. H2O
37. Predict the products of the single replacement reaction
Fe(s) + CuSO4(aq) → ?
A. Cu(s) + FeSO4(aq)
B. Fe(s) + Cu(s) + SO4(aq)
C. CuS(s) + Fe2SO4(aq)
D. FeCuSO4(aq)
E. FeO(s) + CuSO3(aq)
38. Which of these chemical equations describes a precipitation reaction?
A. 2H (g) + O (g) → 2H O(l)
2
2
2
B. CaBr (aq) + H SO (aq) → CaSO (s) + 2HBr(g)
2
2
4
4
C. 2KNO (s) → 2KNO (s) + O (g)
3
2
2
D. 2KBr(aq) + Cl (g) → 2KCl(aq) + Br (l)
2
2
E. 2Al(s) + 3H SO (aq) → Al (SO ) (aq) + 3H (g)
2
4
2
4 3
2
39. Which of these chemical equations describes an acid-base neutralization reaction?
A. 2Al(s) + 3H SO (aq) → Al (SO ) (aq) + 3H (g)
2
4
2
4 3
2
B. SO (g) + H O(l) → H SO (g)
2
2
2
3
C. LiOH(aq) + HNO (aq) → LiNO (aq) + H O(l)
3
3
2
D. 2KBr(aq) + Cl (g) → 2KCl(aq) + Br (l)
2
2
E. CaBr (aq) + H SO (aq) → CaSO (s) + 2HBr(g)
2
2
4
4
40. Which of these chemical equations describes a combustion reaction?
A. 2C H (g) + 7O (g) → 4CO (g) + 6H O(l)
2 6
2
2
2
B. LiOH(aq) + HNO (aq) → LiNO (aq) + H O(l)
3
3
2
C. N (g) + 3H (g) → 2NH (g)
2
2
3
D. 2Na(s) + 2H O(l) → 2NaOH(aq) + H (g)
2
2
E. 2Al(s) + 3H SO (aq) → Al (SO ) (aq) + 3H (g)
2
4
2
4 3
2
41. What are three characteristics of a base?
42. What are three characteristics of an acid?
43. Give an example of a diprotic acid.
44. Write the net ionic equation for the following reaction. Aqueous iron(III) sulfate is added to aqueous sodium sulfide to
produce solid iron(III) sulfide and aqueous sodium sulfate.
Chapter 4 Part 1 Practice Key
1.
Which of these compounds is a strong electrolyte?
A. H2O
B. O2
C. H2SO4
D. C6H12O6 (glucose)
E. CH3COOH (acetic acid)
Difficulty: Easy
Raymond - 004 Reactions... #1
2.
Which of these compounds is a weak electrolyte?
A. HCl
B. CH3COOH (acetic acid)
C. C6H12O6 (glucose)
D. O2
E. NaCl
Difficulty: Easy
Raymond - 004 Reactions... #3
3.
Which of these compounds is a nonelectrolyte?
A. NaOH
B. HNO3
C. C2H6O (ethanol)
D. KF
E. CH3COOH (acetic acid)
Difficulty: Easy
Raymond - 004 Reactions... #6
4.
Identify the major ionic species present in an aqueous solution of Na2CO3.
A. Na2+, CO32B. Na2+, C2-, O3
C. Na+, C4+, O32D. Na+, C+, O2E. Na+, CO32Difficulty: Easy
Raymond - 004 Reactions... #7
5.
The distinguishing characteristic of all electrolyte solutions is that they
A. contain molecules.
B. conduct electricity.
C. react with other solutions.
D. always contain acids.
E. conduct heat.
Difficulty: Easy
Raymond - 004 Reactions... #9
6.
Based on the solubility rules, which one of these compounds should be insoluble in water?
A. NaCl
B. MgBr2
C. FeCl2
D. AgBr
E. ZnCl2
Difficulty: Easy
Raymond - 004 Reactions... #10
7.
Based on the solubility rules, which one of these compounds should be insoluble in water?
A. Na2SO4
B. BaSO4
C. CuSO4
D. MgSO4
E. Rb2SO4
Difficulty: Easy
Raymond - 004 Reactions... #11
8.
Based on the solubility rules, which one of these compounds should be insoluble in water?
A. CaCO3
B. (NH4)2CO3
C. Na2CO3
D. K2CO3
E. KNO3
Difficulty: Easy
Raymond - 004 Reactions... #12
9.
Based on the solubility rules, which one of these compounds should be soluble in water?
A. Hg2Cl2
B. Na2S
C. Ag2CO3
D. Ag2S
E. BaSO4
Difficulty: Easy
Raymond - 004 Reactions... #13
10.
Based on the solubility rules, which one of these compounds should be soluble in water?
A. AgBr
B. AgCl
C. Ag2CO3
D. AgNO3
E. Ag2S
Difficulty: Easy
Raymond - 004 Reactions... #14
11.
Based on the solubility rules, which one of these compounds should be soluble in water?
A. (NH4)3PO4
B. Ca3(PO4)2
C. AlPO4
D. Ag3PO4
E. Mg3(PO4)2
Difficulty: Easy
Raymond - 004 Reactions... #15
12.
Based on the solubility rules, which of these processes will occur when a solution containing about 0.1 g of Pb(NO3)2(aq)
is mixed with a solution containing 0.1 g of KI(aq)/100 mL?
A. KNO3 will precipitate; Pb2+ and I- are spectator ions.
B. No precipitate will form.
C. Pb(NO3)2 will precipitate; K+ and I- are spectator ions.
D. PbI2 will precipitate; K+ and NO3- are spectator ions.
E. Pb2+ and I- are spectator ions, and PbI2 will precipitate.
Difficulty: Medium
Raymond - 004 Reactions... #17
13.
Based on the solubility rules, which of these processes will occur if solutions of CuSO4(aq) and BaCl2(aq) are mixed?
A. CuCl2 will precipitate; Ba2+ and SO42- are spectator ions.
B. CuSO4 will precipitate; Ba2+ and Cl- are spectator ions.
C. BaSO4 will precipitate; Cu2+ and Cl- are spectator ions.
D. BaCl2 will precipitate; Cu2+ and SO42- are spectator ions.
E. No precipitate will form.
Difficulty: Medium
Raymond - 004 Reactions... #18
14.
Based on the solubility rules, which of these processes will occur when solutions of ZnSO4(aq) and MgCl2(aq) are mixed?
A.
B.
C.
D.
E.
ZnCl2 will precipitate; Mg2+ and SO42- will be spectator ions.
ZnSO4 will precipitate; Mg2+ and Cl- will be spectator ions.
MgSO4 will precipitate; Zn2+ and Cl- will be spectator ions.
MgCl2 will precipitate; Zn2+ and SO42- will be spectator ions.
No precipitate will form.
Difficulty: Medium
Raymond - 004 Reactions... #19
15.
The common constituent in all acid solutions is
A. H2.
B. H+.
C. OH-.
D. H2SO4.
E. Cl-.
Difficulty: Medium
Raymond - 004 Reactions... #21
16.
Identify the major ions present in an aqueous LiOH solution.
A. Li2+, O-, HB. Li+, OHC. LiO-, H+
D. Li+, O2-, H+
E. Li-, OH+
Difficulty: Easy
Raymond - 004 Reactions... #22
17.
Identify the major ions present in an aqueous HNO3 solution.
A. HN+, O2B. OH-, NO3C. OH-, NO
D. H+, N3-, O2E. H+, NO3Difficulty: Easy
Raymond - 004 Reactions... #23
18.
What is the correct formula of the salt formed in the neutralization reaction of hydrochloric acid with calcium hydroxide?
A.
B.
C.
D.
E.
CaO
CaCl2
CaH2
CaCl
CaClH
Difficulty: Medium
Raymond - 004 Reactions... #24
19.
What is the chemical formula of the salt produced by the neutralization of nitric acid with calcium hydroxide?
A. CaNO3
B. Ca2(NO3)3
C. Ca3(NO3)2
D. Ca2NO3
E. Ca(NO3)2
Difficulty: Medium
Raymond - 004 Reactions... #26
20.
What is the chemical formula of the salt produced by the neutralization of potassium hydroxide with sulfuric acid?
A. KSO3
B. K2(SO4)3
C. K2SO4
D. K(SO4)2
E. KSO4
Difficulty: Medium
Raymond - 004 Reactions... #28
21.
The oxidation number of N in NaNO3 is
A. +6.
B. +5.
C. +3.
D. -3.
E. none of these.
Difficulty: Medium
Raymond - 004 Reactions... #29
22.
The oxidation number of S in K2SO4 is
A. +6.
B. +4.
C. +2.
D. -1.
E. none of these.
Difficulty: Medium
Raymond - 004 Reactions... #30
23.
24.
25.
The oxidation number of Mn in KMnO4 is
A. +8.
B. +7.
C. +5.
D. -7.
E. -8.
Difficulty: Medium
Raymond - 004 Reactions... #31
The oxidation number of Cr in Cr2O72- is
A. -12.
B. -7.
C. -2.
D. +6.
E. +7.
Difficulty: Medium
Raymond - 004 Reactions... #33
The oxidation number of Cl in ClO3- is
A. -1.
B. +7.
C. +5.
D. +3.
E. none of these.
Difficulty: Medium
Raymond - 004 Reactions... #34
26.
The oxidation number of N in N2H4 is
A. +4.
B. -4.
C. +2.
D. -2.
E. 0.
Difficulty: Medium
Raymond - 004 Reactions... #39
27.
Which choice gives the correct oxidation numbers for all three elements in Rb2SO3 in the order that the elements are
shown in the formula?
A. -2, +6, -2
B. -1, +4, -3
C. +2, +4, -2
D. +1, +4, -2
E. +1, +6, -6
Difficulty: Medium
Raymond - 004 Reactions... #40
28.
Which one of these equations describes a redox reaction?
A. 2Al(s) + 3H SO (aq) → Al (SO ) (aq) + 3H (g)
2
4
2
4 3
2
B. 2KBr(aq) + Pb(NO ) (aq) → 2KNO (aq) + PbBr (s)
3 2
3
2
C. CaBr (aq) + H SO (aq) → CaSO (s) + 2HBr(g)
2
2
4
4
D. H+(aq) + OH-(aq) → H O(l)
2
E. CO 2-(aq) + HSO -(aq) → HCO -(aq) + SO 2-(aq)
3
4
3
4
Difficulty: Medium
Raymond - 004 Reactions... #41
29.
Which of these equations does not represent an oxidation-reduction reaction?
A. 3Al + 6HCl → 3H + AlCl
2
3
B. 2H O → 2H + O
2
2
2
C. 2NaCl + Pb(NO ) → PbCl + 3NaNO
3 2
2
3
D. 2NaI + Br → 2NaBr + I
2
2
E. Cu(NO ) + Zn → Zn(NO ) + Cu
3 2
3 2
Difficulty: Medium
Raymond - 004 Reactions... #42
30.
In the chemical reaction 5H2O2 + 2MnO4- + 6H+ → 2Mn2+ + 8H2O + 5O2, the oxidizing agent is
A. H2O2.
B. MnO4-.
C. H+.
D. Mn2+.
E. O2.
Difficulty: Difficult
Raymond - 004 Reactions... #43
31.
In the chemical reaction 5S + 6KNO3 + 2CaCO3 → 3K2SO4 + 2CaSO4 + CO2 + 3N2, the oxidizing agent is
A. S.
B. N2.
C. KNO3.
D. CaSO4.
E. CaCO3.
Difficulty: Difficult
Raymond - 004 Reactions... #44
32.
Identify the reducing agent in the chemical reaction
5Fe2+(aq) + MnO4-(aq) + 8H+(aq)→ 5Fe3+(aq) + Mn2+(aq) + 4H2O(l).
A. Fe2+
B. MnO4C. H+
D. Mn2+
E. Fe3+
Difficulty: Difficult
Raymond - 004 Reactions... #46
33.
Identify the reducing agent in the chemical reaction
Cd + NiO2 + 2H2O → Cd(OH)2 + Ni(OH)2.
A. Cd
B. NiO2
C. H2O
D. Cd(OH)2
E. Ni(OH)2
Difficulty: Difficult
Raymond - 004 Reactions... #47
34.
What element is oxidized in the chemical reaction
3Cu + 8HNO3 → 3Cu(NO3)2 + 2NO + 4H2O?
A. Cu
B. H
C. N
D. O
E. H2O
Difficulty: Medium
Raymond - 004 Reactions... #48
35.
What element is oxidized in the chemical reaction
NiO2 + Cd + 2H2O → Ni(OH)2 + Cd(OH)2?
A. Ni
B. Cd
C. O
D. H
E. This is not a redox reaction.
Difficulty: Medium
Raymond - 004 Reactions... #49
36.
What element is reduced in the chemical reaction
Cu + 2H2SO4 → CuSO4 + SO2 + 2H2O?
A. Cu
B. H
C. S
D. O
E. H2O
Difficulty: Medium
Raymond - 004 Reactions... #51
37.
Predict the products of the single replacement reaction
Fe(s) + CuSO4(aq) → ?
A. Cu(s) + FeSO4(aq)
B. Fe(s) + Cu(s) + SO4(aq)
C. CuS(s) + Fe2SO4(aq)
D. FeCuSO4(aq)
E. FeO(s) + CuSO3(aq)
Difficulty: Medium
Raymond - 004 Reactions... #52
38.
Which of these chemical equations describes a precipitation reaction?
A. 2H (g) + O (g) → 2H O(l)
2
2
2
B. CaBr (aq) + H SO (aq) → CaSO (s) + 2HBr(g)
2
2
4
4
C. 2KNO (s) → 2KNO (s) + O (g)
3
2
2
D. 2KBr(aq) + Cl (g) → 2KCl(aq) + Br (l)
2
2
E. 2Al(s) + 3H SO (aq) → Al (SO ) (aq) + 3H (g)
2
4
2
4 3
2
Difficulty: Easy
Raymond - 004 Reactions... #56
39.
Which of these chemical equations describes an acid-base neutralization reaction?
A. 2Al(s) + 3H SO (aq) → Al (SO ) (aq) + 3H (g)
2
4
2
4 3
2
B. SO (g) + H O(l) → H SO (g)
2
2
2
3
C. LiOH(aq) + HNO (aq) → LiNO (aq) + H O(l)
3
3
2
D. 2KBr(aq) + Cl (g) → 2KCl(aq) + Br (l)
2
2
E. CaBr (aq) + H SO (aq) → CaSO (s) + 2HBr(g)
2
2
4
4
Difficulty: Medium
Raymond - 004 Reactions... #57
40.
Which of these chemical equations describes a combustion reaction?
A. 2C H (g) + 7O (g) → 4CO (g) + 6H O(l)
2 6
2
2
2
B. LiOH(aq) + HNO (aq) → LiNO (aq) + H O(l)
3
3
2
C. N (g) + 3H (g) → 2NH (g)
2
2
3
D. 2Na(s) + 2H O(l) → 2NaOH(aq) + H (g)
2
2
E. 2Al(s) + 3H SO (aq) → Al (SO ) (aq) + 3H (g)
2
4
2
4 3
2
Difficulty: Easy
Raymond - 004 Reactions... #59
41.
What are three characteristics of a base?
a. A base has a bitter taste.
b. A base feels slippery.
c. A base changes red litmus paper to blue.
Difficulty: Easy
Raymond - 004 Reactions... #100
42.
What are three characteristics of an acid?
a. An acid has a sour taste.
b. An acid changes blue litmus paper to red.
c. An acid reacts with certain metals to produce hydrogen gas.
Difficulty: Easy
Raymond - 004 Reactions... #101
43.
Give an example of a diprotic acid.
H2CO3
Difficulty: Easy
Raymond - 004 Reactions... #103
44.
Write the net ionic equation for the following reaction. Aqueous iron(III) sulfate is added to aqueous sodium sulfide to
produce solid iron(III) sulfide and aqueous sodium sulfate.
2Fe3+(aq) + 3S2-(aq) → Fe2S3(s)
Difficulty: Medium
Raymond - 004 Reactions... #105
Chapter 4 Part 1 Practice Summary
Category
Difficulty: Difficult
Difficulty: Easy
Difficulty: Medium
Raymond - 004 Reactions...
# of Questions
4
18
22
44