Which statement correctly describes the following oxidation-reduction reaction? 5Cr3+(aq) + 3 MnO4 - (aq) + 8 H2O (l) $\rightarrow$ 5 CrO42 - (aq) + 3 Mn2+(aq) + 16 H+(aq)

A) MnO4 - and H2O are both reduced. B) Cr3+ is the reducing agent. C) Cr3+ and H2O are both reducing agents. D) MnO4 - is oxidized. E) None of these are correct. A) MnO4 - and H2O are both reduced. B) Cr3+ is the reducing agent. C) Cr3+ and H2O are both reducing agents. D) MnO4 - is oxidized. E) None of these are correct.

Which statement correctly describes the following reaction? O2(g) + 4 H+(aq) + 4 Cl - (aq) $\rightarrow$ 2 H2O(l) + 2 Cl2(g)

A) O2 is a reducing agent. B) H+ and Cl - are oxidized. C) H+ is reduced. D) H+ is a reducing agent. E) Cl - is a reducing agent. A) O2 is a reducing agent. B) H+ and Cl - are oxidized. C) H+ is reduced. D) H+ is a reducing agent. E) Cl - is a reducing agent.

refer to the following reaction in acid solution. CuS(s) + NO3-(aq) Cu2+(aq) + SO42-(aq) + NO(g) -In the balanced half-reaction for the NO3- ion, how many electrons are involved?

A) 1 B) 2 C) 3 D) 4 E) none of these A) 1 B) 2 C) 3 D) 4 E) none of these

For the reaction: 3 Sn2+(aq) + Cr2O72-(aq) + 14 H+(aq) $\rightarrow$ 3 Sn4+(aq) + 2 Cr3+(aq) + 7 H2O(l) Which of the following statements is true?

A) Both Sn2+ and H+ are oxidizing agents. B) Cr2O72- is the oxidizing agent. C) Sn2+ is reduced. D) The acid isn't important to the reaction. E) None of the above are true. A) Both Sn2+ and H+ are oxidizing agents. B) Cr2O72- is the oxidizing agent. C) Sn2+ is reduced. D) The acid isn't important to the reaction. E) None of the above are true.

Exam 12: Oxidation-Reduction Reactions

Which statement correctly describes the following oxidation-reduction reaction? 5Cr³⁺(aq) + 3 MnO₄ ^- (aq) + 8 H₂O (l) $\rightarrow$ 5 CrO₄² ^- (aq) + 3 Mn²⁺(aq) + 16 H⁺(aq)

(Multiple Choice)

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Question 21

The potential of a cell at standard state conditions can be best be described as:

(Multiple Choice)

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Question 22

‪ Determining Oxidation Numbers -Determine the oxidation state of the carbon atom shown in bold in the following compound:

(Multiple Choice)

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Question 23

How much Cl₂ gas would be collected when a 2.00 M NaCl(aq) solution is electrolyzed for 2.00 hours with a current of 15.0 amps?

(Multiple Choice)

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Question 24

Which of the following isn't an example of an oxidation-reduction reaction?

(Multiple Choice)

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Question 25

Which statement correctly describes the following reaction? O₂(g) + 4 H⁺(aq) + 4 Cl ^- (aq) $\rightarrow$ 2 H₂O(l) + 2 Cl₂(g)

(Multiple Choice)

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Question 26

The half-reaction reduction potentials for the mercury(I) and silver(I) ions are given below.

(Short Answer)

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Question 27

Use a table of standard reduction potentials to determine which of the following is the strongest oxidizing agent.

(Multiple Choice)

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Question 28

‪ Determining Oxidation Numbers -Determine the oxidation number for bromine in HBrO₄.

(Multiple Choice)

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Question 29

Suppose a beer can weighs 40.0 g. Determine the amount of time in hours that a current of 100.0 amp need to be passed through a molten AlF₃ electrolysis cell to produce enough Al to replace a discarded beer can. Sketch the electrolysis cell, labeling the electrodes and showing the direction of electron flow in the external circuit as part of your answer.

(Short Answer)

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Question 30

Identify each of the requested compounds for the following redox reaction. 2 MnO₄ ^- (aq) + 16 H⁺(aq) + 10 Cl ^- (aq) $\rightarrow$ 2 Mn²⁺(aq) + 8 H₂O + 5 Cl₂(g) (I) oxidizing agent (II) reducing agent (III) conjugate oxidizing agent (IV) conjugate reducing agent

(Short Answer)

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Question 31

A voltaic cell is constructed with a Pt wire in an aqueous solution of Br₂/Br ^- (1M) serving as the cathode and a silver wire in a 1M solution of Ag⁺ serving as the anode. The potential of the cell was measured to be +0.287 V. The standard reduction potential for Br₂/Br ^- is 1.087 V. (I) Write the half-reaction for the reduction taking place in the cell. (II) Write the half-reaction for the oxidation taking place in the cell. (III) Write the overall reaction for the oxidation-reduction reaction taking place in the cell. (IV) Calculate the potential for the Ag/Ag⁺ half-reaction taking place in the cell. (V) Determine the standard reduction potential, E°, for the half-reaction below. Ag⁺(aq) + e- ^{$\rightarrow$} Ag(s)

(Essay)

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Question 32

Use the table of electrode potentials to determine which of the following reactions isn't spontaneous under standard conditions.

(Multiple Choice)

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Question 33

What will be the coefficients of Ce⁴⁺ and Cl ^- , respectively when the following reaction is balanced? Ce⁴⁺(aq) + Cl ^- (aq) $\rightarrow$ Cl₂(aq) + Ce³⁺(aq)

(Multiple Choice)

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Question 34

Balance the following oxidation-reduction equation. HI(aq) + HNO₃(aq) $\rightarrow$ NO(g) + I₂(aq)

(Essay)

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Question 35

A current of 10.0 amps over a period of 3.00 hr is passed through a solution of molten KCl. What weight of K metal is produced?

(Multiple Choice)

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Question 36

refer to the following reaction in acid solution. CuS(s) + NO₃^-(aq) Cu²⁺(aq) + SO₄^2-(aq) + NO(g) -In the balanced half-reaction for the NO₃^- ion, how many electrons are involved?

(Multiple Choice)

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Question 37

For the reaction: 3 Sn²⁺(aq) + Cr₂O₇^2-(aq) + 14 H⁺(aq) $\rightarrow$ 3 Sn⁴⁺(aq) + 2 Cr³⁺(aq) + 7 H₂O(l) Which of the following statements is true?

(Multiple Choice)

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Question 38

Which of the following reagents should react with H⁺to produce H₂?

(Multiple Choice)

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Question 39

Which of the following isn't true?

(Multiple Choice)

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Question 40

Showing 21 - 40 of 81

Which statement correctly describes the following oxidation-reduction reaction? 5Cr³⁺(aq) + 3 MnO₄ ^- (aq) + 8 H₂O (l) $\rightarrow$ 5 CrO₄² ^- (aq) + 3 Mn²⁺(aq) + 16 H⁺(aq)

The potential of a cell at standard state conditions can be best be described as:

‪ Determining Oxidation Numbers -Determine the oxidation state of the carbon atom shown in bold in the following compound:

How much Cl₂ gas would be collected when a 2.00 M NaCl(aq) solution is electrolyzed for 2.00 hours with a current of 15.0 amps?

Which of the following isn't an example of an oxidation-reduction reaction?

Which statement correctly describes the following reaction? O₂(g) + 4 H⁺(aq) + 4 Cl ^- (aq) $\rightarrow$ 2 H₂O(l) + 2 Cl₂(g)

The half-reaction reduction potentials for the mercury(I) and silver(I) ions are given below.

Use a table of standard reduction potentials to determine which of the following is the strongest oxidizing agent.

‪ Determining Oxidation Numbers -Determine the oxidation number for bromine in HBrO₄.

Identify each of the requested compounds for the following redox reaction. 2 MnO₄ ^- (aq) + 16 H⁺(aq) + 10 Cl ^- (aq) $\rightarrow$ 2 Mn²⁺(aq) + 8 H₂O + 5 Cl₂(g) (I) oxidizing agent (II) reducing agent (III) conjugate oxidizing agent (IV) conjugate reducing agent

Use the table of electrode potentials to determine which of the following reactions isn't spontaneous under standard conditions.

What will be the coefficients of Ce⁴⁺ and Cl ^- , respectively when the following reaction is balanced? Ce⁴⁺(aq) + Cl ^- (aq) $\rightarrow$ Cl₂(aq) + Ce³⁺(aq)

Balance the following oxidation-reduction equation. HI(aq) + HNO₃(aq) $\rightarrow$ NO(g) + I₂(aq)

A current of 10.0 amps over a period of 3.00 hr is passed through a solution of molten KCl. What weight of K metal is produced?

refer to the following reaction in acid solution. CuS(s) + NO₃^-(aq) Cu²⁺(aq) + SO₄^2-(aq) + NO(g) -In the balanced half-reaction for the NO₃^- ion, how many electrons are involved?

For the reaction: 3 Sn²⁺(aq) + Cr₂O₇^2-(aq) + 14 H⁺(aq) $\rightarrow$ 3 Sn⁴⁺(aq) + 2 Cr³⁺(aq) + 7 H₂O(l) Which of the following statements is true?

Which of the following reagents should react with H⁺to produce H₂?

Which of the following isn't true?

Elements Compounds

The Mole

Structure of the Atom

The Covalent Bond

Ionic and Metallic Bonds

Gases

Making and Breaking of Bonds

Liquids and Solutions

Solids

An Introduction to Kinetics and Equilibrium

Acids and Bases

Chemical Thermodynamics

Kinetics

Nuclear Chemistry

Organic Chemistry

Filters

Exam 12: Oxidation-Reduction Reactions

Which statement correctly describes the following oxidation-reduction reaction? 5Cr3+(aq) + 3 MnO4 - (aq) + 8 H2O (l) →\rightarrow→ 5 CrO42 - (aq) + 3 Mn2+(aq) + 16 H+(aq)

The potential of a cell at standard state conditions can be best be described as:

‪ Determining Oxidation Numbers -Determine the oxidation state of the carbon atom shown in bold in the following compound:

How much Cl2 gas would be collected when a 2.00 M NaCl(aq) solution is electrolyzed for 2.00 hours with a current of 15.0 amps?

Which of the following isn't an example of an oxidation-reduction reaction?

Which statement correctly describes the following reaction? O2(g) + 4 H+(aq) + 4 Cl - (aq) →\rightarrow→ 2 H2O(l) + 2 Cl2(g)

The half-reaction reduction potentials for the mercury(I) and silver(I) ions are given below.

Use a table of standard reduction potentials to determine which of the following is the strongest oxidizing agent.

‪ Determining Oxidation Numbers -Determine the oxidation number for bromine in HBrO4.

Identify each of the requested compounds for the following redox reaction. 2 MnO4 - (aq) + 16 H+(aq) + 10 Cl - (aq) →\rightarrow→ 2 Mn2+(aq) + 8 H2O + 5 Cl2(g) (I) oxidizing agent (II) reducing agent (III) conjugate oxidizing agent (IV) conjugate reducing agent

Use the table of electrode potentials to determine which of the following reactions isn't spontaneous under standard conditions.

What will be the coefficients of Ce4+ and Cl - , respectively when the following reaction is balanced? Ce4+(aq) + Cl - (aq) →\rightarrow→ Cl2(aq) + Ce3+(aq)

Balance the following oxidation-reduction equation. HI(aq) + HNO3(aq) →\rightarrow→ NO(g) + I2(aq)

A current of 10.0 amps over a period of 3.00 hr is passed through a solution of molten KCl. What weight of K metal is produced?

refer to the following reaction in acid solution. CuS(s) + NO3-(aq) Cu2+(aq) + SO42-(aq) + NO(g) -In the balanced half-reaction for the NO3- ion, how many electrons are involved?

For the reaction: 3 Sn2+(aq) + Cr2O72-(aq) + 14 H+(aq) →\rightarrow→ 3 Sn4+(aq) + 2 Cr3+(aq) + 7 H2O(l) Which of the following statements is true?

Which of the following reagents should react with H+ to produce H2?

Which of the following isn't true?

Elements Compounds

The Mole

Structure of the Atom

The Covalent Bond

Ionic and Metallic Bonds

Gases

Making and Breaking of Bonds

Liquids and Solutions

Solids

An Introduction to Kinetics and Equilibrium

Acids and Bases

Chemical Thermodynamics

Kinetics

Nuclear Chemistry

Organic Chemistry

Filters

Which statement correctly describes the following oxidation-reduction reaction? 5Cr³⁺(aq) + 3 MnO₄ ^- (aq) + 8 H₂O (l) $\rightarrow$ 5 CrO₄² ^- (aq) + 3 Mn²⁺(aq) + 16 H⁺(aq)

How much Cl₂ gas would be collected when a 2.00 M NaCl(aq) solution is electrolyzed for 2.00 hours with a current of 15.0 amps?

Which statement correctly describes the following reaction? O₂(g) + 4 H⁺(aq) + 4 Cl ^- (aq) $\rightarrow$ 2 H₂O(l) + 2 Cl₂(g)

‪ Determining Oxidation Numbers -Determine the oxidation number for bromine in HBrO₄.

Identify each of the requested compounds for the following redox reaction. 2 MnO₄ ^- (aq) + 16 H⁺(aq) + 10 Cl ^- (aq) $\rightarrow$ 2 Mn²⁺(aq) + 8 H₂O + 5 Cl₂(g) (I) oxidizing agent (II) reducing agent (III) conjugate oxidizing agent (IV) conjugate reducing agent

What will be the coefficients of Ce⁴⁺ and Cl ^- , respectively when the following reaction is balanced? Ce⁴⁺(aq) + Cl ^- (aq) $\rightarrow$ Cl₂(aq) + Ce³⁺(aq)

Balance the following oxidation-reduction equation. HI(aq) + HNO₃(aq) $\rightarrow$ NO(g) + I₂(aq)

refer to the following reaction in acid solution. CuS(s) + NO₃^-(aq) Cu²⁺(aq) + SO₄^2-(aq) + NO(g) -In the balanced half-reaction for the NO₃^- ion, how many electrons are involved?

For the reaction: 3 Sn²⁺(aq) + Cr₂O₇^2-(aq) + 14 H⁺(aq) $\rightarrow$ 3 Sn⁴⁺(aq) + 2 Cr³⁺(aq) + 7 H₂O(l) Which of the following statements is true?

Which of the following reagents should react with H⁺to produce H₂?