Chapter 20, Problem 30E

(a)

Interpretation Introduction

To determine: The substance that is oxidized and the one that is reduced in the given voltaic cell.

(b)

Interpretation Introduction

To determine: The half-reactions that occur in the two half-cells.

(c)

Interpretation Introduction

To determine: The electrode that acts as anode and the one that acts as cathode.

(d)

Interpretation Introduction

To determine: The signs of the electrodes.

(e)

Interpretation Introduction

To determine: If the electrons flow from the aluminum electrode to the nickel electrode or from the nickel to the aluminum.

(f)

Interpretation Introduction

To determine: The direction to which the cations and anions migrate through the solution.