Question 1

Give an example of a diprotic acid.

Accepted Answer

The answer of Give an example of a diprotic acid....

Question 2

Identify the following compound as a strong electrolyte, weak electrolyte, or nonelectrolyte: CH3COOH.

Accepted Answer

Question 3

Categorize the following reaction as an acid-base neutralization, precipitation, combination, decomposition, combustion, displacement, or disproportionation reaction.
H2SO4(aq)+ 2 KOH(aq)$\rarr$ 2 H2O(l)+ K2SO4(aq)

Accepted Answer

Acid-base ...

Question 4

What element is oxidized in the following chemical reaction? 
H2SO4 + Cd(OH) 2 →\rarr→ 2H2O + CdSO4

Accepted Answer

A)  H
B)  S
C)  O
D)  Cd
E)  this is not a redox reaction F) None of the above
G) A) and D)

Question 5

Identify the element being reduced in the following reaction.
2KBr + F2 $\rarr$Br2 + 2KF

Accepted Answer

Question 6

Give an example of a monoprotic acid.

Accepted Answer

The answer of Give an example of a monoprotic acid....

Question 7

Identify the following compound as a strong electrolyte, weak electrolyte, or nonelectrolyte: NH4NO3

Accepted Answer

Question 8

How many total electrons are transferred in the following reaction? 
B2H6(g) + 3O2(g)  →\rarr→ ?2?3(s) + 3H2O(l)

Accepted Answer

A)  2
B)  3
C)  4
D)  6
E)  12 F) A) and B)
G) A) and C)

Question 9

In the following chemical reaction the oxidizing agent is 
5S + 6KNO3 + 2CaCO3  →\rarr→ 3K2SO4 + 2CaSO4 + CO2 + 3N2

Accepted Answer

A)  S
B)  N2
C)  KNO3
D)  CaSO4
E)  CaCO3 F) D) and E)
G) A) and B)

Question 10

During a titration the following data were collected.A 10.mL portion of an unknown monoprotic acid solution was titrated with 1.0 M NaOH; 40.mL of the base were required to neutralize the sample.What is the molarity of the acid solution?

Accepted Answer

The answer of During a titration the following data were...

Question 11

In the following chemical reaction the oxidizing agent is 
5H2O2 + 2MnO4- + 6H+  →\rarr→ 2Mn2+ + 8H2O + 5O2

Accepted Answer

A)  H2O2
B)  MnO4-
C)  H+
D)  Mn2+
E)  O2 F) A) and D)
G) B) and C)

Question 12

A piece of zinc metal was added to an aqueous solution of lead(II)nitrate.After some time it was observed that the zinc metal appeared to fall apart and a solid had accumulated at the bottom of the reaction vessel.
Write the net ionic equation for this reaction.

Accepted Answer

Zn(s)+ Pb²⁺(...

Question 13

Based on the solubility rules, which one of the following compounds should be insoluble in water?

Accepted Answer

A)  NaCl
B)  MgBr2
C)  FeCl2
D)  AgBr
E)  ZnCl2F) D) and E)
G) A) and B)

Question 14

Which of the following compounds is a weak electrolyte?

Accepted Answer

A)  HCl
B)  CH3COOH (acetic acid) 
C)  C6H12O6 (glucose) 
D)  O2
E)  NaClF) A) and B)
G) A) and C)

Question 15

Which of the following represents a precipitation reaction?

Accepted Answer

A)  2H2(g) + O2(g)  →\rarr→ 2H2O(l) 
B)  CaBr2(aq) + H2SO4(aq)  →\rarr→ CaSO4(s) + 2HBr(g) 
C)  2KNO3(s)  →\rarr→ 2KNO2(s) + O2(g) 
D)  2KBr(aq) + Cl2(g)  →\rarr→ 2KCl(aq) + Br2(l) 
E)  2Al(s) + 3H2SO4(aq)  →\rarr→ Al2(SO4) 3(aq) + 3H2(g)  F) A) and C)
G) B) and C)

Question 16

Which one of the following is a redox reaction?

Accepted Answer

A)  2Al(s) + 3H2SO4(aq)  →\rarr→ Al2(SO4) 3(aq) + 3H2(g) 
B)  2KBr(aq) + Pb(NO3) 2(aq)  →\rarr→ 2KNO3(aq) + PbBr2(s) 
C)  CaBr2(aq) + H2SO4(aq)  →\rarr→  CaSO4(s) + 2HBr(g) 
D)  H+(aq) + OH- (aq)  →\rarr→ H2O(l) 
E)  CO32- (aq) + HSO4-(aq)  →\rarr→  HCO3- (aq) + SO42- (aq)  F) B) and D)
G) A) and D)

Question 17

Identify the precipitate(s)formed when solutions of NaOH(aq), Ca(ClO3)2(aq), and Ba(OH)2(aq)are mixed.

Accepted Answer

Question 18

Identify the elements that are oxidized and reduced in the following reaction. KClO3(aq) + 6HBr(aq)  →\rarr→  KCl(aq) + 3Br2(l) + 3H2O(l)

Accepted Answer

A)  Br is oxidized and Cl is reduced
B)  Cl is oxidized and H is reduced
C)  H is oxidized and O is reduced
D)  O is oxidized and Cl is reduced
E)  Cl is oxidized and Br is reduced F) B) and D)
G) A) and C)

Question 19

Batteries in our cars generate electricity by the following chemical reaction.
Pb + PbO2 + 2H2SO4 $\rarr$ 2PbSO4 + 2H2O
Which substance is oxidized in this process?

Accepted Answer

Question 20

Identify the major ions present in an aqueous HNO3 solution.

Accepted Answer

A)  HN+, O2-
B)  OH-, NO3-
C)  OH-, NO
D)  H+, N3-, O2-
E)  H+, NO3-F) A) and E)
G) A) and C)

Exam 4: Reactions in Aqueous Solutions

Identify the elements that are oxidized and reduced in the following reaction. KClO3(aq) + 6HBr(aq) →\rarr→ KCl(aq) + 3Br2(l) + 3H2O(l)

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Give an example of a monoprotic acid.

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In the following chemical reaction the oxidizing agent is 5S + 6KNO3 + 2CaCO3 →\rarr→ 3K2SO4 + 2CaSO4 + CO2 + 3N2

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Batteries in our cars generate electricity by the following chemical reaction. Pb + PbO2 + 2H2SO4 →\rarr→ 2PbSO4 + 2H2O Which substance is oxidized in this process?

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A piece of zinc metal was added to an aqueous solution of lead(II)nitrate.After some time it was observed that the zinc metal appeared to fall apart and a solid had accumulated at the bottom of the reaction vessel. Write the net ionic equation for this reaction.

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Which of the following compounds is a weak electrolyte?

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Identify the following compound as a strong electrolyte, weak electrolyte, or nonelectrolyte: CH3COOH.

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Categorize the following reaction as an acid-base neutralization, precipitation, combination, decomposition, combustion, displacement, or disproportionation reaction. H2SO4(aq)+ 2 KOH(aq) →\rarr→ 2 H2O(l)+ K2SO4(aq)

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In the following chemical reaction the oxidizing agent is 5H2O2 + 2MnO4- + 6H+ →\rarr→ 2Mn2+ + 8H2O + 5O2

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Identify the following compound as a strong electrolyte, weak electrolyte, or nonelectrolyte: NH4NO3

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How many total electrons are transferred in the following reaction? B2H6(g) + 3O2(g) →\rarr→ ?2?3(s) + 3H2O(l)

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During a titration the following data were collected.A 10.mL portion of an unknown monoprotic acid solution was titrated with 1.0 M NaOH; 40.mL of the base were required to neutralize the sample.What is the molarity of the acid solution?

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Identify the precipitate(s)formed when solutions of NaOH(aq), Ca(ClO3)2(aq), and Ba(OH)2(aq)are mixed.

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What element is oxidized in the following chemical reaction? H2SO4 + Cd(OH) 2 →\rarr→ 2H2O + CdSO4

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Give an example of a diprotic acid.

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Which one of the following is a redox reaction?

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Identify the element being reduced in the following reaction. 2KBr + F2 →\rarr→ Br2 + 2KF

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Which of the following represents a precipitation reaction?

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Identify the major ions present in an aqueous HNO3 solution.

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Based on the solubility rules, which one of the following compounds should be insoluble in water?

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Identify the elements that are oxidized and reduced in the following reaction. KClO₃(aq) + 6HBr(aq) $\rarr$ KCl(aq) + 3Br₂(l) + 3H₂O(l)

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In the following chemical reaction the oxidizing agent is 5S + 6KNO₃ + 2CaCO₃ $\rarr$ 3K₂SO₄ + 2CaSO₄ + CO₂ + 3N₂

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Batteries in our cars generate electricity by the following chemical reaction. Pb + PbO₂ + 2H₂SO₄ $\rarr$ 2PbSO₄ + 2H₂O Which substance is oxidized in this process?

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Zn(s)+ Pb²⁺(...
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Identify the following compound as a strong electrolyte, weak electrolyte, or nonelectrolyte: CH₃COOH.

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Categorize the following reaction as an acid-base neutralization, precipitation, combination, decomposition, combustion, displacement, or disproportionation reaction. H₂SO₄(aq)+ 2 KOH(aq) $\rarr$ 2 H₂O(l)+ K₂SO₄(aq)

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Acid-base ...
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In the following chemical reaction the oxidizing agent is 5H₂O₂ + 2MnO₄^- + 6H⁺ $\rarr$ 2Mn²⁺ + 8H₂O + 5O₂

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Identify the following compound as a strong electrolyte, weak electrolyte, or nonelectrolyte: NH₄NO₃

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How many total electrons are transferred in the following reaction? B₂H₆(g) + 3O₂(g) $\rarr$ ?₂?₃(s) + 3H₂O(l)

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Identify the precipitate(s)formed when solutions of NaOH(aq), Ca(ClO₃)₂(aq), and Ba(OH)₂(aq)are mixed.

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What element is oxidized in the following chemical reaction? H₂SO₄ + Cd(OH) ₂ $\rarr$ 2H₂O + CdSO₄

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Identify the element being reduced in the following reaction. 2KBr + F₂ $\rarr$ Br₂ + 2KF

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Identify the major ions present in an aqueous HNO₃solution.

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