Question 1

Ammonium carbonate is not water soluble.

Accepted Answer

A) True 
 B)False

Question 2

Identify NaOH as an electrolyte or nonelectrolyte.

Accepted Answer

The answer of Identify NaOH as an electrolyte or nonelectrolyte....

Question 3

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

Accepted Answer

A)  NaCl 
B)  MgBr2 
C)  FeCl2 
D)  AgBr 
E)  ZnCl2 
A)  NaCl 
B)  MgBr2 
C)  FeCl2 
D)  AgBr 
E)  ZnCl2

Question 4

What is the oxidation number of sulfur in sulfuric acid?

Accepted Answer

A)  +1 
B)  +6 
C)  -2 
D)  -4 
E)  +4 
A)  +1 
B)  +6 
C)  -2 
D)  -4 
E)  +4

Question 5

Which of these compounds is a weak electrolyte?

Accepted Answer

A)  HCl 
B)  NH3 
C)  C6H12O6 (glucose) 
D)  N2 
E)  KCl 
A)  HCl 
B)  NH3 
C)  C6H12O6 (glucose) 
D)  N2 
E)  KCl

Question 6

Which of these compounds is a strong electrolyte?

Accepted Answer

A)  H2O 
B)  O2 
C)  H2SO4 
D)  C6H12O6 (glucose) 
E)  CH3COOH (acetic acid) 
A)  H2O 
B)  O2 
C)  H2SO4 
D)  C6H12O6 (glucose) 
E)  CH3COOH (acetic acid)

Question 7

Identify the net ionic equation for the following reaction: 2NaCl(aq) + Hg2(NO3)2(aq) → 2NaNO3(aq) + Hg2Cl2(s)

Accepted Answer

A)  Na+(aq) + NO3- (aq) → NaNO3(aq) 
B)  Hg22+(aq) + 2Cl-(aq) → Hg2Cl2(s) 
C)  2Hg+(aq) + 2Cl-(aq) → 2HgCl(s) 
D)  Hg2(NO3)2(aq) → Hg22+(aq) + 2NO3-(aq) 
E)  Hg22+(aq) → Hg2(s) 
A)  Na+(aq) + NO3- (aq) → NaNO3(aq) 
B)  Hg22+(aq) + 2Cl-(aq) → Hg2Cl2(s) 
C)  2Hg+(aq) + 2Cl-(aq) → 2HgCl(s) 
D)  Hg2(NO3)2(aq) → Hg22+(aq) + 2NO3-(aq) 
E)  Hg22+(aq) → Hg2(s)

Question 8

What is the oxidation number of iodine in I2?

Accepted Answer

A)  -1 
B)  0 
C)  +1 
D)  +7 
E)  -7 
A)  -1 
B)  0 
C)  +1 
D)  +7 
E)  -7

Question 9

Which of the following is soluble in water?

Accepted Answer

A)  AgCl 
B)  Rb2CrO4 
C)  Hg2I2 
D)  CaSO4 
E)  PbBr2 
A)  AgCl 
B)  Rb2CrO4 
C)  Hg2I2 
D)  CaSO4 
E)  PbBr2

Question 10

Balance the following oxidation-reduction equation: Li(s) + O2(g) → Li2O(s)

Accepted Answer

A)  2Li(s) + O2(g) → Li2O(s) 
B)  Li(s) + O2(g) → Li2O(s) 
C)  4Li(s) + O2(g) → 2Li2O(s) 
D)  2Li(s) + O2(g) → 2Li2O(s) 
E)  2Li(s) + O2(g) → 4Li2O(s) 
A)  2Li(s) + O2(g) → Li2O(s) 
B)  Li(s) + O2(g) → Li2O(s) 
C)  4Li(s) + O2(g) → 2Li2O(s) 
D)  2Li(s) + O2(g) → 2Li2O(s) 
E)  2Li(s) + O2(g) → 4Li2O(s)

Question 11

A(n) ________ is a substance that has a distinctly different color in acidic and basic media and is used in acid-base titrations to find the endpoint of the titration.

Accepted Answer

The answer of A(n) ________ is a substance that has...

Question 12

H3PO4 is a strong acid.

Accepted Answer

A) True 
 B)False

Question 13

The substance (CH3CH2)2NH 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 14

A 4.691-g sample of MgCl2 is dissolved in enough water to give 750. mL of solution. What is the magnesium ion concentration in this solution?

Accepted Answer

A)  6.25 M 
B)  6.57 × 10-2 M 
C)  4.38 × 10-2 M 
D)  3.29 × 10-2 M 
E)  2.19 ×10-2 M 
A)  6.25 M 
B)  6.57 × 10-2 M 
C)  4.38 × 10-2 M 
D)  3.29 × 10-2 M 
E)  2.19 ×10-2 M

Question 15

Which process defines how an ionic compound breaks apart into its constituent ions upon dissolution?

Accepted Answer

A)  electrolysis 
B)  dissociation 
C)  division 
D)  ionization 
E)  decomposition 
A)  electrolysis 
B)  dissociation 
C)  division 
D)  ionization 
E)  decomposition

Question 16

What volume of a 0.452 M NaOH solution is needed to neutralize 85.0 mL of a 0.176 M solution of H2SO4?

Accepted Answer

A)  218.3 mL 
B)  66.2 mL 
C)  38.4 mL 
D)  436.6 mL 
E)  33.1 mL 
A)  218.3 mL 
B)  66.2 mL 
C)  38.4 mL 
D)  436.6 mL 
E)  33.1 mL

Question 17

The substance HClO4 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 18

Hydration is the process in which organic solvent molecules surround a solute particle.

Accepted Answer

A) True 
 B)False

Question 19

If aqueous solutions of lead(II) nitrate and sodium sulfate are mixed, which insoluble precipitate is formed?

Accepted Answer

A)  NaNO3 
B)  Na2NO3 
C)  PbSO4 
D)  Pb2SO4 
E)  PbS 
A)  NaNO3 
B)  Na2NO3 
C)  PbSO4 
D)  Pb2SO4 
E)  PbS

Question 20

Which one of the following is a strong acid?

Accepted Answer

A)  CH3COOH 
B)  H2SO3 
C)  NH3 
D)  H3PO4 
E)  HClO3 
A)  CH3COOH 
B)  H2SO3 
C)  NH3 
D)  H3PO4 
E)  HClO3

Exam 4: Reactions in Aqueous Solutions

Ammonium carbonate is not water soluble.

Identify NaOH as an electrolyte or nonelectrolyte.

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

What is the oxidation number of sulfur in sulfuric acid?

Which of these compounds is a weak electrolyte?

Which of these compounds is a strong electrolyte?

Identify the net ionic equation for the following reaction: 2NaCl(aq) + Hg2(NO3)2(aq) → 2NaNO3(aq) + Hg2Cl2(s)

What is the oxidation number of iodine in I2?

Which of the following is soluble in water?

Balance the following oxidation-reduction equation: Li(s) + O2(g) → Li2O(s)

A(n) ________ is a substance that has a distinctly different color in acidic and basic media and is used in acid-base titrations to find the endpoint of the titration.

H3PO4 is a strong acid.

The substance (CH3CH2)2NH is considered to be

A 4.691-g sample of MgCl2 is dissolved in enough water to give 750. mL of solution. What is the magnesium ion concentration in this solution?

Which process defines how an ionic compound breaks apart into its constituent ions upon dissolution?

What volume of a 0.452 M NaOH solution is needed to neutralize 85.0 mL of a 0.176 M solution of H2SO4?

The substance HClO4 is considered to be

Hydration is the process in which organic solvent molecules surround a solute particle.

If aqueous solutions of lead(II) nitrate and sodium sulfate are mixed, which insoluble precipitate is formed?

Which one of the following is a strong acid?

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

Identify the net ionic equation for the following reaction: 2NaCl(aq) + Hg₂(NO₃)₂(aq) → 2NaNO₃(aq) + Hg₂Cl₂(s)

What is the oxidation number of iodine in I₂?

Balance the following oxidation-reduction equation: Li(s) + O₂(g) → Li₂O(s)

H₃PO₄ is a strong acid.

The substance (CH₃CH₂)₂NH is considered to be

A 4.691-g sample of MgCl₂ is dissolved in enough water to give 750. mL of solution. What is the magnesium ion concentration in this solution?

What volume of a 0.452 M NaOH solution is needed to neutralize 85.0 mL of a 0.176 M solution of H₂SO₄?

The substance HClO₄ is considered to be