Exam 14: Oxidation-Reduction Reactions

Which reaction could be used to electroplate nickel with gold?

Which statement is FALSE?

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

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^-

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^-

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

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^-

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

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

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

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

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

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 example BEST represents the reaction between copper and hydrochloric acid?

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^-

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^-

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^-

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

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