Balance the following oxidation-reduction reaction in acid solution: MnO4- + H2C2O4 → Mn2+ + CO2 + H2O The sum of the coefficients is ________.

A) 25 B) 47 C) 33 D) 18 E) 21 A) 25 B) 47 C) 33 D) 18 E) 21

To precipitate Cd2+ from solution one could add:

A) H2S(aq) B) HCl(aq) C) HNO3(aq) D) KI(aq) E) NaCl(aq) A) H2S(aq) B) HCl(aq) C) HNO3(aq) D) KI(aq) E) NaCl(aq)

Exam 5: Introduction to Reactions in Aqueous Solutions

Explore all topics

When the following equation is completed and balanced for the reaction in acidic solution, what is the proper coefficient for H⁺? Zn(s) + Cr₂O₇^2- (aq) → Zn²⁺ (aq) + Cr²⁺ (aq)

(Multiple Choice)

4.8/5

(35)

Question 61

A disproportionation reaction is one in which:

(Multiple Choice)

4.9/5

(40)

Question 62

Reactive metals such as iron will reduce arsenic acid (H₃AsO₄) to the highly poisonous arsine gas (AsH₃) in the presence of acid. What mass of iron would be required for such a reaction with 250 mL of 0.90 M arsenic acid, assuming that the iron is oxidized to Fe³⁺? 3 H₃AsO₄ + 8 Fe + 24 H⁺ → 3 AsH₃ + 12 H₂O + 8 Fe³⁺

(Multiple Choice)

4.9/5

(34)

Question 63

Balance the following equation for an oxidation-reduction reaction occurring in an acidic solution: CuS(s) + HNO₃ → Cu(NO₃)₂ + H₂O + NO(g) + S(s) The sum of the coefficients is ________.

(Multiple Choice)

4.9/5

(30)

Question 64

Balance the following oxidation-reduction reaction in acid solution: MnO₄^- + H₂C₂O₄ → Mn²⁺ + CO₂ + H₂O The sum of the coefficients is ________.

(Multiple Choice)

4.8/5

(31)

Question 65

Write the net ionic equation for the reaction of barium chloride and sodium sulfate.

(Multiple Choice)

4.7/5

(31)

Question 66

Which of the following reactions is an oxidation-reduction reaction?

(Multiple Choice)

4.7/5

(38)

Question 67

A 5.00 mL sample of a nitric acid solution is titrated with 33.5 mL of 0.201 M NaOH. What is the molarity of the nitric acid solution?

(Multiple Choice)

4.9/5

(34)

Question 68

To precipitate Cd²⁺ from solution one could add:

(Multiple Choice)

4.7/5

(45)

Question 69

Which of the following is most likely to act as a reducing agent?

(Multiple Choice)

4.8/5

(25)

Question 70

An oxidizing agent is reduced during a redox reaction.

(True/False)

4.9/5

(41)

Question 71

The hydrated proton attracts only one water molecule.

(True/False)

4.9/5

(27)

Question 72

A reducing agent causes itself to be reduced.

(True/False)

4.8/5

(34)

Question 73

Which of the following would have the strongest tendency for producing H⁺ ions in an aqueous solution?

(Multiple Choice)

4.8/5

(40)

Question 74

Write the net ionic equation for the reaction of ammonium chloride and iron(III) hydroxide.

(Multiple Choice)

4.9/5

(29)

Question 75

For the reaction between aqueous potassium hydroxide and aqueous nitric acid, the so-called "spectator" ions are ________.

(Multiple Choice)

4.9/5

(25)

Question 76

The substance KOH is a:

(Multiple Choice)

4.9/5

(18)

Question 77

A titration is a method of adding small amounts of one reactant until the reaction is complete.

(True/False)

4.8/5

(39)

Question 78

Choose the INCORRECT statement.

(Multiple Choice)

4.8/5

(30)

Question 79

12.5 mL of 0.280 M HNO₃ and 5.0 mL of 0.920 M KOH are mixed. Is the resulting solution acidic, basic, or neutral?

(Multiple Choice)

5.0/5

(36)

Question 80

Showing 61 - 80 of 97

Exam 5: Introduction to Reactions in Aqueous Solutions

When the following equation is completed and balanced for the reaction in acidic solution, what is the proper coefficient for H+? Zn(s) + Cr2O72- (aq) → Zn2+ (aq) + Cr2+ (aq)

A disproportionation reaction is one in which:

Balance the following equation for an oxidation-reduction reaction occurring in an acidic solution: CuS(s) + HNO3 → Cu(NO3)2 + H2O + NO(g) + S(s) The sum of the coefficients is ________.

Balance the following oxidation-reduction reaction in acid solution: MnO4- + H2C2O4 → Mn2+ + CO2 + H2O The sum of the coefficients is ________.

Write the net ionic equation for the reaction of barium chloride and sodium sulfate.

Which of the following reactions is an oxidation-reduction reaction?

A 5.00 mL sample of a nitric acid solution is titrated with 33.5 mL of 0.201 M NaOH. What is the molarity of the nitric acid solution?

To precipitate Cd2+ from solution one could add:

Which of the following is most likely to act as a reducing agent?

An oxidizing agent is reduced during a redox reaction.

The hydrated proton attracts only one water molecule.

A reducing agent causes itself to be reduced.

Which of the following would have the strongest tendency for producing H+ ions in an aqueous solution?

Write the net ionic equation for the reaction of ammonium chloride and iron(III) hydroxide.

For the reaction between aqueous potassium hydroxide and aqueous nitric acid, the so-called "spectator" ions are ________.

The substance KOH is a:

A titration is a method of adding small amounts of one reactant until the reaction is complete.

Choose the INCORRECT statement.

12.5 mL of 0.280 M HNO3 and 5.0 mL of 0.920 M KOH are mixed. Is the resulting solution acidic, basic, or neutral?

Matter - Its Properties and Measurement

Atoms and the Atomic Theory

Chemical Compounds

Chemical Reactions

Gases

Thermochemistry

Electrons in Atoms

The Periodic Table and Some Atomic Properties

Chemical Bonding I: Basic Concepts

Chemical Bonding II: Additional Aspects

Intermolecular Forces: Liquids and Solids

Solutions and Their Physical Properties

Chemical Kinetics

Principles of Chemical Equilibrium

Acids and Bases

Additional Aspects of Acid-Base Equilibria

Solubility and Complex-Ion Equilibria

Spontaneous Change: Entropy and Free Energy

Electrochemistry

Main Group Elements I: Groups 1, 2, 13, and 14

Main Group Elements II: Groups 18, 17, 16, 15, and Hydrogen

The Transition Elements

Complex Ions and Coordination Compounds

Nuclear Chemistry 1-41

Structures of Organic Compounds

Reactions of Organic Compounds

Chemistry of the Living State

Filters

When the following equation is completed and balanced for the reaction in acidic solution, what is the proper coefficient for H⁺? Zn(s) + Cr₂O₇^2- (aq) → Zn²⁺ (aq) + Cr²⁺ (aq)

Balance the following equation for an oxidation-reduction reaction occurring in an acidic solution: CuS(s) + HNO₃ → Cu(NO₃)₂ + H₂O + NO(g) + S(s) The sum of the coefficients is ________.

Balance the following oxidation-reduction reaction in acid solution: MnO₄^- + H₂C₂O₄ → Mn²⁺ + CO₂ + H₂O The sum of the coefficients is ________.

To precipitate Cd²⁺ from solution one could add:

Which of the following would have the strongest tendency for producing H⁺ ions in an aqueous solution?

12.5 mL of 0.280 M HNO₃ and 5.0 mL of 0.920 M KOH are mixed. Is the resulting solution acidic, basic, or neutral?