Question 1

Identify the following compound as an electrolyte or nonelectrolyte: H2SO4.

Accepted Answer

Question 2

Write balanced molecular and net ionic equations for the reaction that would occur between Al(s)and Co(NO3)2(aq). Be sure to include the correct states in your final equations. If no reaction is expected, write "no reaction."

Accepted Answer

Molecular equation: 2Al(s)+ 3C

Question 3

A 350. mL sample of 0.276M HNO3 is partially neutralized by 125 mL of 0.0120M Ca(OH)2. Find the concentration of nitric acid in the resulting solution.

Accepted Answer

A) 0.210 M 
B) 0.00632 M 
C) 0.203 M 
D) 0.0240 M 
E) 0.197 M 
A) 0.210 M 
B) 0.00632 M 
C) 0.203 M 
D) 0.0240 M 
E) 0.197 M

Question 4

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

Accepted Answer

The answer of Identify the element being oxidized in the...

Question 5

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

Accepted Answer

A) Hg2Cl2 
B) Na2S 
C) Ag2CO3 
D) Ag2S 
E) BaSO4 
A) Hg2Cl2 
B) Na2S 
C) Ag2CO3 
D) Ag2S 
E) BaSO4

Question 6

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

Accepted Answer

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

Question 7

Write the net ionic equation for the following reaction. Aqueous iron(III)sulfate is added to aqueous sodium sulfide to produce solid iron(III)sulfide and aqueous sodium sulfate.

Accepted Answer

2Fe³⁺(aq)

Question 8

Which of the following represents a hydrogen displacement reaction?

Accepted Answer

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

Question 9

When 50.0 mL of a 0.3000 M AgNO3 solution is added to 50.0 mL of a solution of MgCl2, an AgCl precipitate forms immediately. The precipitate is then filtered from the solution, dried, and weighed. If the recovered AgCl is found to have a mass of 0.1183 g, what is the concentration of magnesium ions in the original MgCl2 solution?

Accepted Answer

A) 0.300 M 
B) 8.25 * 10-3 M 
C) 1.65 * 10-2 M 
D) 2.06 * 10-5 M 
E) 4.13 * 10-3 M 
A) 0.300 M 
B) 8.25 * 10-3 M 
C) 1.65 * 10-2 M 
D) 2.06 * 10-5 M 
E) 4.13 * 10-3 M

Question 10

What volume of concentrated nitric acid (15.0 M)is required to make 100. mL of a 3.0 M nitric acid solution?

Accepted Answer

The answer of What volume of concentrated nitric acid (15.0...

Question 11

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

Accepted Answer

Question 12

Predict the products of the following single replacement reaction. 
Fe(s)+ CuSO4(aq)$\rarr$

Accepted Answer

A) Cu(s)+ FeSO4(aq) 
B) Fe(s)+ Cu(s)+ SO4(aq) 
C) CuS(s)+ Fe2SO4(aq) 
D) FeCuSO4(aq) 
E) FeO(s)+ CuSO3(aq) 
A) Cu(s)+ FeSO4(aq) 
B) Fe(s)+ Cu(s)+ SO4(aq) 
C) CuS(s)+ Fe2SO4(aq) 
D) FeCuSO4(aq) 
E) FeO(s)+ CuSO3(aq)

Question 13

Identify the element being reduced in the following reaction.
4Al + 3O2 $\rarr$ 2Al2O3

Accepted Answer

The answer of Identify the element being reduced in the...

Question 14

Write balanced molecular and net ionic equations for the reaction that would occur between CaCl2(aq)and Na2CO3(aq). Be sure to include the correct states in your final equations. If no reaction is expected, write "no reaction."

Accepted Answer

Molecular equation: CaCl₂(aq)

Question 15

Give an example of a monoprotic acid.

Accepted Answer

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

Question 16

Identify the following as either a good or poor conductor of electricity: gasoline (C8H18).

Accepted Answer

Question 17

What element is oxidized in the following chemical reaction? 
NiO2 + Cd + 2H2O $\rarr$ Ni(OH)2 + Cd(OH)2

Accepted Answer

A) Ni 
B) Cd 
C) O 
D) H 
E) This is not a redox reaction. 
A) Ni 
B) Cd 
C) O 
D) H 
E) This is not a redox reaction.

Question 18

Write balanced molecular and net ionic equations for the acid-base neutralization reaction between H3PO4(aq)and Ba(OH)2(aq). Be sure to include the correct states in your final equations. If no reaction is expected, write "no reaction."

Accepted Answer

Molecular equation: 2H₃PO

Question 19

The oxidation number of Fe in K3Fe(CN)6 is

Accepted Answer

A) +3. 
B) +2. 
C) +1. 
D) -3. 
E) -4. 
A) +3. 
B) +2. 
C) +1. 
D) -3. 
E) -4.

Question 20

Identify the following compound as an electrolyte or nonelectrolyte: C12H22O11(sucrose).

Accepted Answer

Exam 4: Reactions in Aqueous Solution

Identify the following compound as an electrolyte or nonelectrolyte: H2SO4.

Write balanced molecular and net ionic equations for the reaction that would occur between Al(s)and Co(NO3)2(aq). Be sure to include the correct states in your final equations. If no reaction is expected, write "no reaction."

A 350. mL sample of 0.276M HNO3 is partially neutralized by 125 mL of 0.0120M Ca(OH)2. Find the concentration of nitric acid in the resulting solution.

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

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

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

Write the net ionic equation for the following reaction. Aqueous iron(III)sulfate is added to aqueous sodium sulfide to produce solid iron(III)sulfide and aqueous sodium sulfate.

Which of the following represents a hydrogen displacement reaction?

What volume of concentrated nitric acid (15.0 M)is required to make 100. mL of a 3.0 M nitric acid solution?

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

Predict the products of the following single replacement reaction. Fe(s)+ CuSO4(aq) →\rarr→

Identify the element being reduced in the following reaction. 4Al + 3O2 →\rarr→ 2Al2O3

Write balanced molecular and net ionic equations for the reaction that would occur between CaCl2(aq)and Na2CO3(aq). Be sure to include the correct states in your final equations. If no reaction is expected, write "no reaction."

Give an example of a monoprotic acid.

Identify the following as either a good or poor conductor of electricity: gasoline (C8H18).

What element is oxidized in the following chemical reaction? NiO2 + Cd + 2H2O →\rarr→ Ni(OH)2 + Cd(OH)2

Write balanced molecular and net ionic equations for the acid-base neutralization reaction between H3PO4(aq)and Ba(OH)2(aq). Be sure to include the correct states in your final equations. If no reaction is expected, write "no reaction."

The oxidation number of Fe in K3Fe(CN)6 is

Identify the following compound as an electrolyte or nonelectrolyte: C12H22O11(sucrose).

Introduction

Atoms, Molecules, and Ions

Stoichiometry

Gases

Energy Relationships in Chemical Reactions

The Electronic Structure of Atoms

The Periodic Table

Chemical Bonding I: the Covalent Bond

Chemical Bonding Ii: Molecular Geometry and Hybridization of Atomic Orbitals

Introduction to Organic Chemistry

Intermolecular Forces and Liquids and Solids

Physical Properties of Solutions

Chemical Kinetics

Chemical Equilibrium

Acids and Bases

Acid-Base Equilibria and Solubility Equilibria

Thermodynamics

Redox Reactions and Electrochemistry

The Chemistry of Coordination Compounds

Nuclear Chemistry

Organic Polymerssynthetic and Natural

Filters

Identify the following compound as an electrolyte or nonelectrolyte: H₂SO₄.

Write balanced molecular and net ionic equations for the reaction that would occur between Al(s)and Co(NO₃)₂(aq). Be sure to include the correct states in your final equations. If no reaction is expected, write "no reaction."

A 350. mL sample of 0.276M HNO₃ is partially neutralized by 125 mL of 0.0120M Ca(OH)₂. Find the concentration of nitric acid in the resulting solution.

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

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

Predict the products of the following single replacement reaction. Fe(s)+ CuSO₄(aq) $\rarr$

Identify the element being reduced in the following reaction. 4Al + 3O₂ $\rarr$ 2Al₂O₃

Write balanced molecular and net ionic equations for the reaction that would occur between CaCl₂(aq)and Na₂CO₃(aq). Be sure to include the correct states in your final equations. If no reaction is expected, write "no reaction."

Identify the following as either a good or poor conductor of electricity: gasoline (C₈H₁₈).

What element is oxidized in the following chemical reaction? NiO₂ + Cd + 2H₂O $\rarr$ Ni(OH)₂ + Cd(OH)₂

Write balanced molecular and net ionic equations for the acid-base neutralization reaction between H₃PO₄(aq)and Ba(OH)₂(aq). Be sure to include the correct states in your final equations. If no reaction is expected, write "no reaction."

The oxidation number of Fe in K₃Fe(CN)₆ is

Identify the following compound as an electrolyte or nonelectrolyte: C₁₂H₂₂O₁₁(sucrose).