Question 1

Which process defines how an ionic compounds break 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 2

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 3

Which of these equations does not represent an oxidation-reduction reaction?

Accepted Answer

A) 3Al + 6HCl → 3H2 + AlCl3 
B) 2H2O → 2H2 + O2 
C) 2NaCl + Pb(NO3)2 → PbCl2 + 2NaNO3 
D) 2NaI + Br2 → 2NaBr + I2 
E) Cu(NO3)2 + Zn → Zn(NO3)2 + Cu 
A) 3Al + 6HCl → 3H2 + AlCl3 
B) 2H2O → 2H2 + O2 
C) 2NaCl + Pb(NO3)2 → PbCl2 + 2NaNO3 
D) 2NaI + Br2 → 2NaBr + I2 
E) Cu(NO3)2 + Zn → Zn(NO3)2 + Cu

Question 4

The following reaction will occur Na(s)+ AgCl(aq)→ Ag(s)+ NaCl(aq)

Accepted Answer

A) True 
 B)False

Question 5

The distinguishing characteristic of all electrolyte solutions is that they

Accepted Answer

A) contain molecules. 
B) conduct electricity. 
C) react with other solutions. 
D) always contain acids. 
E) conduct heat. 
A) contain molecules. 
B) conduct electricity. 
C) react with other solutions. 
D) always contain acids. 
E) conduct heat.

Question 6

What is the oxidation number of oxygen in KMnO4?

Accepted Answer

A) +1 
B) -8 
C) +5 
D) -2 
E) +3 
A) +1 
B) -8 
C) +5 
D) -2 
E) +3

Question 7

Which of these compounds is a nonelectrolyte?

Accepted Answer

A) NaF 
B) HNO3 
C) CH3COOH (acetic acid) 
D) NaOH 
E) C6H12O6 (glucose) 
A) NaF 
B) HNO3 
C) CH3COOH (acetic acid) 
D) NaOH 
E) C6H12O6 (glucose)

Question 8

What mass of lithium phosphate is needed to prepare 500.mL of a solution having a lithium ion concentration of 0.125 M?

Accepted Answer

A) 2.41 g 
B) 7.24 g 
C) 14.5 g 
D) 21.7 g 
E) 43.4 g 
A) 2.41 g 
B) 7.24 g 
C) 14.5 g 
D) 21.7 g 
E) 43.4 g

Question 9

Which salt is produced by the neutralization of hydrobromic acid with magnesium hydroxide?

Accepted Answer

A) MgBr 
B) Mg2Br3 
C) MgBr2 
D) Mg3Br2 
E) Mg2Br 
A) MgBr 
B) Mg2Br3 
C) MgBr2 
D) Mg3Br2 
E) Mg2Br

Question 10

Ammonium carbonate is not water soluble.

Accepted Answer

A) True 
 B)False

Question 11

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 12

What volume of a 0.442 M NaOH solution is needed to neutralize 65.0 mL of a 0.296 M solution of HNO3?

Accepted Answer

A) 8.71 mL 
B) 21.8 mL 
C) 43.5 mL 
D) 87.1 mL 
E) 174 mL 
A) 8.71 mL 
B) 21.8 mL 
C) 43.5 mL 
D) 87.1 mL 
E) 174 mL

Question 13

What is the net ionic equation for the reaction that occurs when aqueous solutions of Pb(NO3)2 and NH4Cl are mixed?

Accepted Answer

A) Pb(NO3)2(aq)+ 2NH4Cl(aq)→ 2NH4NO3(aq)+ PbCl2(s) 
B) Pb2+(aq)+ 2Cl-(aq)→ PbCl2(s) 
C) Pb2+(aq)+ 2NO3-(aq)+ 2NH4+(aq)+ 2Cl-(aq)→ 2NH4+(aq)+ 2NO3-(aq)+ PbCl2(s) 
D) NH4+(aq)+ NO3-(aq)→ NH4NO3(s) 
E) NH4+(aq)+ NO3-(aq)→ 2NO(g)+ 2H2O(l) 
A) Pb(NO3)2(aq)+ 2NH4Cl(aq)→ 2NH4NO3(aq)+ PbCl2(s) 
B) Pb2+(aq)+ 2Cl-(aq)→ PbCl2(s) 
C) Pb2+(aq)+ 2NO3-(aq)+ 2NH4+(aq)+ 2Cl-(aq)→ 2NH4+(aq)+ 2NO3-(aq)+ PbCl2(s) 
D) NH4+(aq)+ NO3-(aq)→ NH4NO3(s) 
E) NH4+(aq)+ NO3-(aq)→ 2NO(g)+ 2H2O(l)

Question 14

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 15

H3O+ is called the ________________ ________________.

Accepted Answer

Question 16

Which process defines how molecular compounds form ions upon dissolution?

Accepted Answer

A) ionization 
B) composition 
C) division 
D) dissolution 
E) decomposition 
A) ionization 
B) composition 
C) division 
D) dissolution 
E) decomposition

Question 17

A 0.8838-g sample of an ionic compound containing bromide ions and an unknown metal cation is dissolved in water and treated with an excess of AgNO3.If 1.573 g of a AgBr precipitate forms,what is the percent by mass of Br in the original compound?

Accepted Answer

A) 62.13% 
B) 75.72% 
C) 56.19% 
D) 42.55% 
E) 37.87% 
A) 62.13% 
B) 75.72% 
C) 56.19% 
D) 42.55% 
E) 37.87%

Question 18

Identify the reducing agent in the chemical reaction Cd + NiO2 + 2H2O → Cd(OH)2 + Ni(OH)2

Accepted Answer

A) Cd 
B) NiO2 
C) H2O 
D) Cd(OH)2 
E) Ni(OH)2 
A) Cd 
B) NiO2 
C) H2O 
D) Cd(OH)2 
E) Ni(OH)2

Question 19

Which is a strong base?

Accepted Answer

A) LiOH 
B) CH3COOH 
C) NH3 
D) H3PO4 
E) HClO2 
A) LiOH 
B) CH3COOH 
C) NH3 
D) H3PO4 
E) HClO2

Question 20

Phenolphthalein is a universal indicator and maybe used as an indicator for all acid-base titrations.

Accepted Answer

A) True 
 B)False

Exam 4: Reactions in Aqueous Solutions

Which process defines how an ionic compounds break apart into its constituent ions upon dissolution?

Which of these compounds is a strong electrolyte?

Which of these equations does not represent an oxidation-reduction reaction?

The following reaction will occur Na(s)+ AgCl(aq)→ Ag(s)+ NaCl(aq)

The distinguishing characteristic of all electrolyte solutions is that they

What is the oxidation number of oxygen in KMnO4?

Which of these compounds is a nonelectrolyte?

What mass of lithium phosphate is needed to prepare 500.mL of a solution having a lithium ion concentration of 0.125 M?

Which salt is produced by the neutralization of hydrobromic acid with magnesium hydroxide?

Ammonium carbonate is not water soluble.

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

What volume of a 0.442 M NaOH solution is needed to neutralize 65.0 mL of a 0.296 M solution of HNO3?

What is the net ionic equation for the reaction that occurs when aqueous solutions of Pb(NO3)2 and NH4Cl are mixed?

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

H3O+ is called the ________________ ________________.

Which process defines how molecular compounds form ions upon dissolution?

A 0.8838-g sample of an ionic compound containing bromide ions and an unknown metal cation is dissolved in water and treated with an excess of AgNO3.If 1.573 g of a AgBr precipitate forms,what is the percent by mass of Br in the original compound?

Identify the reducing agent in the chemical reaction Cd + NiO2 + 2H2O → Cd(OH)2 + Ni(OH)2

Which is a strong base?

Phenolphthalein is a universal indicator and maybe used as an indicator for all acid-base titrations.

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

What is the oxidation number of oxygen in KMnO₄?

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

What volume of a 0.442 M NaOH solution is needed to neutralize 65.0 mL of a 0.296 M solution of HNO₃?

What is the net ionic equation for the reaction that occurs when aqueous solutions of Pb(NO₃)2 and NH₄Cl are mixed?

H₃O⁺is called the .

A 0.8838-g sample of an ionic compound containing bromide ions and an unknown metal cation is dissolved in water and treated with an excess of AgNO₃.If 1.573 g of a AgBr precipitate forms,what is the percent by mass of Br in the original compound?

Identify the reducing agent in the chemical reaction Cd + NiO₂ + 2H₂O → Cd(OH)₂ + Ni(OH)₂