Question 1

________ is the name given for the process when a substance gains electrons during a chemical reaction.

Accepted Answer

The answer of ________ is the name given for the...

Question 2

Write a short definition for an Arrhenius acid.

Accepted Answer

An Arrhenius acid is

Question 3

Which salt is produced by the neutralization of nitric acid with calcium hydroxide?

Accepted Answer

A)  CaNO3 
B)  Ca2(NO3)3 
C)  Ca3(NO3)2 
D)  Ca2NO3 
E)  Ca(NO3)2 
A)  CaNO3 
B)  Ca2(NO3)3 
C)  Ca3(NO3)2 
D)  Ca2NO3 
E)  Ca(NO3)2

Question 4

Suppose aqueous solutions of silver(I) nitrate and potassium chloride are mixed. Which represents the likely result?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 5

The substance NH3 is considered to be

Accepted Answer

A)  a weak acid. 
B)  a weak base. 
C)  a strong acid. 
D)  a strong base. 
E)  neither acidic nor basic. 
A)  a weak acid. 
B)  a weak base. 
C)  a strong acid. 
D)  a strong base. 
E)  neither acidic nor basic.

Question 6

Which of the following compounds is most likely to dissolve in water?

Accepted Answer

A)  BaSO4 
B)  AgBr 
C)  CaCO3 
D)  Na2S 
E)  None of these compounds would dissolve in water. 
A)  BaSO4 
B)  AgBr 
C)  CaCO3 
D)  Na2S 
E)  None of these compounds would dissolve in water.

Question 7

What is the oxidation number of oxygen in potassium superoxide, KO2?

Accepted Answer

A)  +1 
B)  0 
C)  -½ 
D)  +½ 
E)  -2 
A)  +1 
B)  0 
C)  -½ 
D)  +½ 
E)  -2

Question 8

Based on the solubility rules, which one of these compounds is insoluble in water?

Accepted Answer

A)  Na2SO4 
B)  BaSO4 
C)  CuSO4 
D)  MgSO4 
E)  Rb2SO4 
A)  Na2SO4 
B)  BaSO4 
C)  CuSO4 
D)  MgSO4 
E)  Rb2SO4

Question 9

A 3.682-g sample of KClO3 is dissolved in enough water to give 375. mL of solution. What is the chlorate ion concentration in this solution?

Accepted Answer

A)  9.82 M 
B)  1.60 × 10-1 M 
C)  8.01 ×10-2 M 
D)  9.82 × 10-3 M 
E)  1.60 × 10-2 M 
A)  9.82 M 
B)  1.60 × 10-1 M 
C)  8.01 ×10-2 M 
D)  9.82 × 10-3 M 
E)  1.60 × 10-2 M

Question 10

Based on the solubility rules, which of these processes will occur if solutions of CuSO4(aq) and BaCl2(aq) are mixed?

Accepted Answer

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. 
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.

Question 11

Automobile batteries use 3.0 M H2SO4 as an electrolyte. How much 1.20 M NaOH will be needed to neutralize 225 mL of battery acid? H2SO4(aq) + 2NaOH(aq) → 2H2O(l) + Na2SO4(aq)

Accepted Answer

A)  0.045 L 
B)  0.28 L 
C)  0.56 L 
D)  0.90 L 
E)  1.1 L 
A)  0.045 L 
B)  0.28 L 
C)  0.56 L 
D)  0.90 L 
E)  1.1 L

Question 12

Which substance is present in the largest proportion in a solution?

Accepted Answer

A)  salute 
B)  gas 
C)  solvent 
D)  solid 
E)  solute 
A)  salute 
B)  gas 
C)  solvent 
D)  solid 
E)  solute

Question 13

Which represents the result of mixing equal volumes of 1 M HCl and 1 M NH3 solutions? (Each sphere represents 1 mol of ions.)

Accepted Answer

A)    
B)    
C)    
D)    
E)    
A)    
B)    
C)    
D)    
E)

Question 14

Based on the solubility rules, which one of these compounds is soluble in water?

Accepted Answer

A)  CaSO4 
B)  BaSO4 
C)  PbSO4 
D)  K2SO4 
E)  Ag2SO4 
A)  CaSO4 
B)  BaSO4 
C)  PbSO4 
D)  K2SO4 
E)  Ag2SO4

Question 15

Which of the following is a strong base?

Accepted Answer

A)  NH3 
B)  Ca(OH)2 
C)  Al(OH)3 
D)  B(OH)3 
E)  CH3OH 
A)  NH3 
B)  Ca(OH)2 
C)  Al(OH)3 
D)  B(OH)3 
E)  CH3OH

Question 16

Which substance is present in the smallest proportion in a solution?

Accepted Answer

A)  liquid 
B)  gas 
C)  solvent 
D)  solid 
E)  solute 
A)  liquid 
B)  gas 
C)  solvent 
D)  solid 
E)  solute

Question 17

The distinguishing characteristic of all nonelectrolyte solutions is that they

Accepted Answer

A)  contain ions. 
B)  do not conduct electricity. 
C)  react with other solutions. 
D)  always contain acids. 
E)  conducts heat. 
A)  contain ions. 
B)  do not conduct electricity. 
C)  react with other solutions. 
D)  always contain acids. 
E)  conducts heat.

Question 18

Which is a strong acid?

Accepted Answer

A)  Ba(OH)2 
B)  H3PO4 
C)  HC2H3O2 
D)  NaCl 
E)  HClO4 
A)  Ba(OH)2 
B)  H3PO4 
C)  HC2H3O2 
D)  NaCl 
E)  HClO4

Question 19

What is oxidized in the following reaction? Fe + Ag2O → FeO + 2Ag

Accepted Answer

A)  Ag 
B)  Ag2O 
C)  Fe 
D)  FeO 
E)  2Ag 
A)  Ag 
B)  Ag2O 
C)  Fe 
D)  FeO 
E)  2Ag

Question 20

Which chemical equation describes a hydrogen displacement reaction?

Accepted Answer

A)  2C2H6(g) + 7O2(g) → 4CO2(g) + 6H2O(l) 
B)  2KBr(aq) + Cl2(g) → 2KCl(aq) + Br2(aq) 
C)  N2(g) + 3H2(g) → 2NH3(g) 
D)  CaBr2(aq) + H2SO4(aq) → CaSO4(s) + 2HBr(aq) 
E)  2Al(s) + 3H2SO4(aq) → Al2(SO4)3(aq) + 3H2(g) 
A)  2C2H6(g) + 7O2(g) → 4CO2(g) + 6H2O(l) 
B)  2KBr(aq) + Cl2(g) → 2KCl(aq) + Br2(aq) 
C)  N2(g) + 3H2(g) → 2NH3(g) 
D)  CaBr2(aq) + H2SO4(aq) → CaSO4(s) + 2HBr(aq) 
E)  2Al(s) + 3H2SO4(aq) → Al2(SO4)3(aq) + 3H2(g)

Exam 4: Reactions in Aqueous Solutions

________ is the name given for the process when a substance gains electrons during a chemical reaction.

Write a short definition for an Arrhenius acid.

Which salt is produced by the neutralization of nitric acid with calcium hydroxide?

Suppose aqueous solutions of silver(I) nitrate and potassium chloride are mixed. Which represents the likely result?

The substance NH3 is considered to be

Which of the following compounds is most likely to dissolve in water?

What is the oxidation number of oxygen in potassium superoxide, KO2?

Based on the solubility rules, which one of these compounds is insoluble in water?

A 3.682-g sample of KClO3 is dissolved in enough water to give 375. mL of solution. What is the chlorate ion concentration in this solution?

Based on the solubility rules, which of these processes will occur if solutions of CuSO4(aq) and BaCl2(aq) are mixed?

Automobile batteries use 3.0 M H2SO4 as an electrolyte. How much 1.20 M NaOH will be needed to neutralize 225 mL of battery acid? H2SO4(aq) + 2NaOH(aq) → 2H2O(l) + Na2SO4(aq)

Which substance is present in the largest proportion in a solution?

Which represents the result of mixing equal volumes of 1 M HCl and 1 M NH3 solutions? (Each sphere represents 1 mol of ions.)

Based on the solubility rules, which one of these compounds is soluble in water?

Which of the following is a strong base?

Which substance is present in the smallest proportion in a solution?

The distinguishing characteristic of all nonelectrolyte solutions is that they

Which is a strong acid?

What is oxidized in the following reaction? Fe + Ag2O → FeO + 2Ag

Which chemical equation describes a hydrogen displacement reaction?

Chemistry: the Central Science

Atoms, Molecules, and Ions

Stoichiometry: Ratios of Combination

Thermochemistry

Quantum Theory and the Electronic Structure of Atoms

Electron Configuration and the Periodic Table

Chemical Bonding I: Basic Concepts

Chemical Bonding II: Molecular Geometry and Bonding Theories

Gases

Intermolecular Forces and the Physical Properties of Liquids and Solids

Modern Materials

Physical Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria and Solubility Equilibria

Entropy, Free Energy, and Equilibrium

Electrochemistry

Nuclear Chemistry

Environmental Chemistry

Coordination Chemistry

Metallurgy and the Chemistry of Metals

Nonmetallic Elements and Their Compounds

Organic Chemistry

Filters

The substance NH₃ is considered to be

What is the oxidation number of oxygen in potassium superoxide, KO₂?

A 3.682-g sample of KClO₃ is dissolved in enough water to give 375. mL of solution. What is the chlorate ion concentration in this solution?

Based on the solubility rules, which of these processes will occur if solutions of CuSO₄(aq) and BaCl₂(aq) are mixed?

Automobile batteries use 3.0 M H₂SO₄ as an electrolyte. How much 1.20 M NaOH will be needed to neutralize 225 mL of battery acid? H₂SO₄(aq) + 2NaOH(aq) → 2H₂O(l) + Na₂SO₄(aq)

Which represents the result of mixing equal volumes of 1 M HCl and 1 M NH₃ solutions? (Each sphere represents 1 mol of ions.)

What is oxidized in the following reaction? Fe + Ag₂O → FeO + 2Ag