The line notation, Al(s) | Al³⁺(aq) || Co²⁺(aq) | Co(s), indicates that

Question

Quizplus · Accepted Answer

In the line notation, the left side represents the anode and the right side represents the cathode. The vertical line represents the boundary between the two half-cells. The notation Al(s) | Al³⁺(aq) indicates that aluminum is being oxidized and losing electrons to form Al³⁺ ions. On the other side of the vertical line, Co²⁺(aq) | Co(s) indicates that Co is being reduced and gaining electrons to form Co metal. Therefore, Al is the reducing agent and Co is the oxidizing agent. Thus, the correct answer is choice C.

The Line Notation, Al(s) | Al3+(aq) || Co2+(aq) | Co(s)

The Line Notation, Al(s) | Al³⁺(aq) || Co²⁺(aq) | Co(s)