FiltersDone

Question type

Essay

Multiple Choice

Short Answer

True False

Matching

Exam 14: Oxidation-Reduction Reactions

Show Answer

Share

---

All types

Filters

Study FlashcardsPractice ExamLearn

Question 1

Multiple Choice

Review LaterAdd Note

Review Later

Which example BEST represents the reaction between magnesium and hydrochloric acid?

A) Mg + 2 HCl  MgCl₂ + H₂
B) Mg + 2 HCl  MgH₂ + Cl₂
C) Mg + H₂Cl  MgCl + H₂
D) Magnesium and hydrochloric acid do not react.

E) A) and D)
F) A) and C)

Correct Answer

verified

A

Question 2

Multiple Choice

Review LaterAdd Note

Review Later

Write the balanced net ionic equation for the reaction consisting of the two half-reactions given. Mg  Mg²⁺ + 2 e^- Pb⁴⁺ + 4 e^-  Pb

A) Pb (s) + Mg²⁺ (aq)  Pb⁴⁺ (aq) + Mg (s)
B) Mg (s) + Pb⁴⁺ (aq)  Pb (s) + Mg²⁺ (aq)
C) 2 Mg (s) + Pb⁴⁺ (aq)  Pb (s) + 2 Mg²⁺ (aq)
D) Pb (s) + 2 Mg²⁺ (aq)  Pb⁴⁺ (aq) + 2 Mg (s)

E) None of the above
F) A) and B)

Correct Answer

verified

Show Answer

Question 3

Multiple Choice

Review LaterAdd Note

Given the following net ionic equation, select the correct pairing of half-reactions. Mg (s) + Zn²⁺ (aq)  Mg²⁺ (aq) + Zn (s)

Consider an electrochemical cell consisting of zinc and nickel half-cells. Use the partial activity series included to determine the direction in which the electrons in the wire will flow. Zn Zn²⁺ + 2e^- Fe  Fe²⁺ + 2e^- Co  Co²⁺ + 2e^- Ni  Ni²⁺ + 2e^- Cu  Cu²⁺ + 2e^-

The major credit for creating the first "battery" goes to:

Given the accompanying partial activity series, which element(s) will react with acid? Zn  Zn²⁺ + 2e^- Fe  Fe²⁺ + 2e^- Ni  Ni²⁺ + 2e^- H₂  2H⁺ + 2e^- Cu  Cu²⁺ + 2e^- Ag  Ag⁺ + e^-

Which statement is FALSE?

Given the accompanying partial activity series, predict which reaction(s) will occur as written. Zn  Zn²⁺ + 2e^- Fe  Fe²⁺ + 2e^- Co  Co²⁺ + 2e^- Ni  Ni²⁺ + 2e^- Cu  Cu²⁺ + 2e^-

Which reaction could be used to electroplate nickel with gold?

If the accompanying drawing of an electrochemical cell represents an iron-nickel cell, use the partial activity series included to describe the component labeled 2. Zn  Zn²⁺ + 2e^- Fe  Fe²⁺ + 2e^- Co  Co²⁺ + 2e^- Ni  Ni²⁺ + 2e^- Cu  Cu²⁺ + 2e^-

Which example BEST represents the reaction between copper and hydrochloric acid?

In the context of chemical reactions, reduction refers to the:

Given the accompanying partial activity series, which element CANNOT reduce nickel(II) to elemental nickel? Zn  Zn²⁺ + 2e^- Fe Fe²⁺ + 2e^- Co  Co²⁺ + 2e^- Ni  Ni²⁺ + 2e^- Cu  Cu²⁺ + 2e^-

Given the accompanying partial activity series, which element(s) will react with acid? Zn  Zn²⁺ + 2e^- Fe  Fe²⁺ + 2e^- Ni  Ni²⁺ + 2e^- H₂  2H⁺ + 2e^- Cu  Cu²⁺ + 2e^- Ag  Ag⁺ + e^-

If the accompanying drawing of an electrochemical cell represents an iron-nickel cell, use the partial activity series included to select the half-reaction represented by the RIGHT side of the cell. Zn  Zn²⁺ + 2e^- Fe  Fe²⁺ + 2e^- Co  Co²⁺ + 2e^- Ni Ni²⁺ + 2e^- Cu  Cu²⁺ + 2e^-

Given the accompanying partial activity series, predict which element or ion will react with the cobalt ion, Co²⁺. Zn  Zn²⁺ + 2e^- Fe  Fe²⁺ + 2e^- Co  Co²⁺ + 2e^- Ni  Ni²⁺ + 2e^- Cu  Cu²⁺ + 2e^-

If the accompanying drawing of an electrochemical cell represents an iron-nickel cell, use the partial activity series included to determine the component labeled 1. Zn  Zn²⁺ + 2e^- Fe  Fe²⁺ + 2e^- Co  Co²⁺ + 2e^- Ni  Ni²⁺ + 2e^- Cu  Cu²⁺ + 2e^-

Considering the following net ionic equation: Mg + Fe²⁺  Mg²⁺ + Fe The species REDUCED is _____, and the REDUCING AGENT is _____.

Write the balanced net ionic equation for the reaction consisting of the two half-reactions given. Cu  Cu²⁺ + 2 e^- Ag⁺ + e^-  Ag

Considering the following net ionic equation: Mg + Fe²⁺  Mg²⁺ + Fe The species that is OXIDIZED is _____, and the OXIDIZING AGENT is _____.