Question 1

A weak acid or a weak base ionizes completely.

Accepted Answer

A) True 
 B)False

Question 2

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

A)  Acid-Base Neutralization 
B)  Precipitation 
C)  Decomposition 
D)  Combustion 
E)  Displacement 
A)  Acid-Base Neutralization 
B)  Precipitation 
C)  Decomposition 
D)  Combustion 
E)  Displacement

Question 3

The oxidation number of iodine increases by 6 in the following reaction.2MnO4- + I- + H2O $\rarr$ 2MnO2 + IO3- + 2OH-

Accepted Answer

A) True 
 B)False

Question 4

Identify the correct net ionic equation for the reaction that occurs when solutions of HNO3 and KOH are mixed

Accepted Answer

A) HNO3(aq) + KOH(aq) $\rarr$ H2O(l) + KNO3(aq) 
B) K+(aq) + NO3-(aq) $\rarr$ KNO3(aq) 
C) HNO3(aq) + KOH(aq) $\rarr$ H2O(l) + KNO3(s) 
D) H+(aq) + OH-(aq) $\rarr$ H2O(l) 
E) HNO3(aq) + OH-(aq) $\rarr$ H2O(l) + NO3-(aq) 
A) HNO3(aq) + KOH(aq) $\rarr$ H2O(l) + KNO3(aq) 
B) K+(aq) + NO3-(aq) $\rarr$ KNO3(aq) 
C) HNO3(aq) + KOH(aq) $\rarr$ H2O(l) + KNO3(s) 
D) H+(aq) + OH-(aq) $\rarr$ H2O(l) 
E) HNO3(aq) + OH-(aq) $\rarr$ H2O(l) + NO3-(aq)

Question 5

Using the redox reaction below determine which element is oxidized and which is reduced.4NH3 + 3Ca(ClO)2 $\rarr$ 2N2 + 6H2O + 3CaCl2

Accepted Answer

A)  H is oxidized and N is reduced 
B)  Cl is oxidized and O is reduced 
C)  N is oxidized and Cl is reduced 
D)  Cl is oxidized and N is reduced 
E)  N is oxidized and O is reduced 
A)  H is oxidized and N is reduced 
B)  Cl is oxidized and O is reduced 
C)  N is oxidized and Cl is reduced 
D)  Cl is oxidized and N is reduced 
E)  N is oxidized and O is reduced

Question 6

A piece of copper metal was added to an aqueous solution of silver nitrate, and within a few minutes it was observed that a grey crystalline solid formed on surface of the copper. The solution turned a blue color characteristic of copper(II) ions. Select the correct net ionic equation for this reaction.

Accepted Answer

A)  Cu(s) + Ag+(aq) $\rarr$ Cu2+(aq) + Ag(s) 
B)  Cu(s) + 2Ag+(aq) $\rarr$ Cu2+(aq) + 2Ag(s) 
C)  Cu(aq) + 2Ag+(aq) $\rarr$ Cu2+(aq) + 2Ag(aq) 
D)  2Cu(s) + Ag+(aq) $\rarr$ 2Cu2+(aq) + Ag(s) 
E)  None of the above 
A)  Cu(s) + Ag+(aq) $\rarr$ Cu2+(aq) + Ag(s) 
B)  Cu(s) + 2Ag+(aq) $\rarr$ Cu2+(aq) + 2Ag(s) 
C)  Cu(aq) + 2Ag+(aq) $\rarr$ Cu2+(aq) + 2Ag(aq) 
D)  2Cu(s) + Ag+(aq) $\rarr$ 2Cu2+(aq) + Ag(s) 
E)  None of the above

Question 7

Al is the oxidizing agent in the following reaction.4Al + 3O2 $\rarr$ 2Al2O3

Accepted Answer

A) True 
 B)False

Question 8

CH3OH (methanol) is a weak electrolyte.

Accepted Answer

A) True 
 B)False

Question 9

Identify the correct net ionic equation for the reaction that occurs when solutions of HF and KOH are mixed.

Accepted Answer

A) H+(aq) + OH-(aq) $\rarr$ H2O(l) 
B) HF(aq) + OH-(aq) $\rarr$ H2O(l) + F-(aq) 
C) H+(aq) + KOH(aq) $\rarr$ H2O(l) + K+(aq) 
D) HF(aq) + KOH(aq) $\rarr$H2O(l) + KF(s) 
E) HF(aq) + KOH(s) $\rarr$H2O(l) + KF(aq) 
A) H+(aq) + OH-(aq) $\rarr$ H2O(l) 
B) HF(aq) + OH-(aq) $\rarr$ H2O(l) + F-(aq) 
C) H+(aq) + KOH(aq) $\rarr$ H2O(l) + K+(aq) 
D) HF(aq) + KOH(aq) $\rarr$H2O(l) + KF(s) 
E) HF(aq) + KOH(s) $\rarr$H2O(l) + KF(aq)

Question 10

What volume (mL) of a 0.2450 M KOH(aq) solution is required to completely neutralize 55.25 mL of a 0.5440 M H3PO4(aq) solution

Accepted Answer

A)  30.06 mL 
B)  165.8 mL 
C)  90.17 mL 
D)  22.09 mL 
E)  368.0 mL 
A)  30.06 mL 
B)  165.8 mL 
C)  90.17 mL 
D)  22.09 mL 
E)  368.0 mL

Question 11

The following reaction is a redox reaction.
CaC2(s) + H2O(l) $\rarr$ HCCH(g) + CaO(s)

Accepted Answer

A) True 
 B)False

Question 12

Identify the precipitate(s) formed when solutions of NH4Cl(aq), AgClO3(aq), and NaCl(aq) are mixed.

Accepted Answer

A)  AgCl 
B)  AgCl and NH4ClO3 
C)  NH4Cl and NaClO3 
D)  NH4ClO3 
E)  AgNH4 
A)  AgCl 
B)  AgCl and NH4ClO3 
C)  NH4Cl and NaClO3 
D)  NH4ClO3 
E)  AgNH4

Question 13

What mass of C12H22O11 (sucrose) is needed to prepare 255 mL of a 0.570 M solution of sucrose in water

Accepted Answer

A)  49.8 g 
B)  145 g 
C)  153 g 
D)  0.145 g 
E)  447 g 
A)  49.8 g 
B)  145 g 
C)  153 g 
D)  0.145 g 
E)  447 g

Question 14

What compound is formed, as a precipitate, when solutions of NaOH(aq), Ca(ClO3)2(aq), and Ba(OH)2(aq) are mixed

Accepted Answer

A)  CaClO3 
B)  Ba(OH)2 
C)  NaClO3 
D)  Ca(OH)2 
E)  None of the above 
A)  CaClO3 
B)  Ba(OH)2 
C)  NaClO3 
D)  Ca(OH)2 
E)  None of the above

Question 15

A 250. mL sample of 0.0328M HCl is partially neutralized by the addition of 100. mL of 0.0245M NaOH. Find the concentration of hydrochloric acid in the resulting solution.

Accepted Answer

A)  0.00700 M 
B)  0.0164 M 
C)  0.0383 M 
D)  0.0230 M 
E)  0.0575 M 
A)  0.00700 M 
B)  0.0164 M 
C)  0.0383 M 
D)  0.0230 M 
E)  0.0575 M

Question 16

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)  3.00 * 10-2 M 
B)  4.41 * 10-2 M 
C)  0.118 M 
D)  1.65 * 10-2 M 
E)  8.01 * 10-2 M 
A)  3.00 * 10-2 M 
B)  4.41 * 10-2 M 
C)  0.118 M 
D)  1.65 * 10-2 M 
E)  8.01 * 10-2 M

Question 17

1.40 g of silver nitrate is dissolved in 125 mL of water. To this solution 5.00 mL of 1.50M hydrochloric acid is added, and a precipitate forms. Find the concentration of silver ions remaining in solution.

Accepted Answer

A)  5.7*10-3 M 
B)  6.34*10-2 M 
C)  5.77*10-2 M 
D)  0.121M 
E)  5.9*10-3 M 
A)  5.7*10-3 M 
B)  6.34*10-2 M 
C)  5.77*10-2 M 
D)  0.121M 
E)  5.9*10-3 M

Question 18

Identify the major ions present in an aqueous LiOH solution.

Accepted Answer

A)  Li2+, O-, H- 
B)  Li+, OH- 
C)  LiO-, H+ 
D)  Li+, O2-, H+ 
E)  Li-, OH+ 
A)  Li2+, O-, H- 
B)  Li+, OH- 
C)  LiO-, H+ 
D)  Li+, O2-, H+ 
E)  Li-, OH+

Question 19

What is the molar concentration of chloride ions in a solution prepared by mixing 100. mL of 2.0 M KCl with 50. mL of a 1.5 M CaCl2 solution

Accepted Answer

A)  5.3 M 
B)  4.3 M 
C)  3.3 M 
D)  2.3 M 
E)  None of the above 
A)  5.3 M 
B)  4.3 M 
C)  3.3 M 
D)  2.3 M 
E)  None of the above

Question 20

Which of the following represents an acid-base neutralization reaction

Accepted Answer

A)  2Al(s) + 3H2SO4(aq) $\rarr$ Al2(SO4)3(aq) + 3H2(g) 
B)  SO2(g) + H2O(l) $\rarr$ H2SO3(g) 
C)  LiOH(aq) + HNO3(aq) $\rarr$  LiNO3(aq) + H2O(l) 
D) 2KBr(aq) + Cl2(g) $\rarr$ 2KCl(aq) + Br2(l) 
E) CaBr2(aq) + H2SO4(aq) $\rarr$  CaSO4(s) + 2HBr(g) 
A)  2Al(s) + 3H2SO4(aq) $\rarr$ Al2(SO4)3(aq) + 3H2(g) 
B)  SO2(g) + H2O(l) $\rarr$ H2SO3(g) 
C)  LiOH(aq) + HNO3(aq) $\rarr$  LiNO3(aq) + H2O(l) 
D) 2KBr(aq) + Cl2(g) $\rarr$ 2KCl(aq) + Br2(l) 
E) CaBr2(aq) + H2SO4(aq) $\rarr$  CaSO4(s) + 2HBr(g)

Exam 4: Reactions in Aqueous Solutions

A weak acid or a weak base ionizes completely.

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)

The oxidation number of iodine increases by 6 in the following reaction.2MnO4- + I- + H2O →\rarr→ 2MnO2 + IO3- + 2OH-

Identify the correct net ionic equation for the reaction that occurs when solutions of HNO3 and KOH are mixed

Using the redox reaction below determine which element is oxidized and which is reduced.4NH3 + 3Ca(ClO)2 →\rarr→ 2N2 + 6H2O + 3CaCl2

Al is the oxidizing agent in the following reaction.4Al + 3O2 →\rarr→ 2Al2O3

CH3OH (methanol) is a weak electrolyte.

Identify the correct net ionic equation for the reaction that occurs when solutions of HF and KOH are mixed.

What volume (mL) of a 0.2450 M KOH(aq) solution is required to completely neutralize 55.25 mL of a 0.5440 M H3PO4(aq) solution

The following reaction is a redox reaction. CaC2(s) + H2O(l) →\rarr→ HCCH(g) + CaO(s)

Identify the precipitate(s) formed when solutions of NH4Cl(aq), AgClO3(aq), and NaCl(aq) are mixed.

What mass of C12H22O11 (sucrose) is needed to prepare 255 mL of a 0.570 M solution of sucrose in water

What compound is formed, as a precipitate, when solutions of NaOH(aq), Ca(ClO3)2(aq), and Ba(OH)2(aq) are mixed

A 250. mL sample of 0.0328M HCl is partially neutralized by the addition of 100. mL of 0.0245M NaOH. Find the concentration of hydrochloric acid in the resulting solution.

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

1.40 g of silver nitrate is dissolved in 125 mL of water. To this solution 5.00 mL of 1.50M hydrochloric acid is added, and a precipitate forms. Find the concentration of silver ions remaining in solution.

Identify the major ions present in an aqueous LiOH solution.

What is the molar concentration of chloride ions in a solution prepared by mixing 100. mL of 2.0 M KCl with 50. mL of a 1.5 M CaCl2 solution

Which of the following represents an acid-base neutralization reaction

Chemistry: The Study of Change

Atoms Molecules and Ions

Mass Relationships in Chemical Reactions

Gases

Thermochemistry

Quantum Theory and the Electronic Structure of Atoms

Periodic Relationships Among the Elements

Chemical Bonding I: Basic Concepts

Chemical Bonding II: Molecular Geometry and Hybridization of Atomic

Intermolecular Forces and Liquids and Solids

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

Chemistry in the Atmosphere

Metallurgy and the Chemistry of Metals

Nonmetallic Elements and Their Compounds

Transition Metals Chemistry and Coordination Compounds

Organic Chemistry

Synthetic and Natural Organic Polymers

Filters

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)

The oxidation number of iodine increases by 6 in the following reaction.2MnO₄^- + I^- + H₂O $\rarr$ 2MnO₂ + IO₃^- + 2OH^-

Identify the correct net ionic equation for the reaction that occurs when solutions of HNO₃ and KOH are mixed

Using the redox reaction below determine which element is oxidized and which is reduced.4NH₃ + 3Ca(ClO)₂ $\rarr$ 2N₂ + 6H₂O + 3CaCl₂

Al is the oxidizing agent in the following reaction.4Al + 3O₂ $\rarr$ 2Al₂O₃

CH₃OH (methanol) is a weak electrolyte.

What volume (mL) of a 0.2450 M KOH(aq) solution is required to completely neutralize 55.25 mL of a 0.5440 M H₃PO₄(aq) solution

The following reaction is a redox reaction. CaC₂(s) + H₂O(l) $\rarr$ HCCH(g) + CaO(s)

Identify the precipitate(s) formed when solutions of NH₄Cl(aq), AgClO₃(aq), and NaCl(aq) are mixed.

What mass of C₁₂H₂₂O₁₁ (sucrose) is needed to prepare 255 mL of a 0.570 M solution of sucrose in water

What compound is formed, as a precipitate, when solutions of NaOH(aq), Ca(ClO₃)₂(aq), and Ba(OH)₂(aq) are mixed

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

What is the molar concentration of chloride ions in a solution prepared by mixing 100. mL of 2.0 M KCl with 50. mL of a 1.5 M CaCl₂ solution