A voltaic cell prepared using aluminum and nickel has the following cell notation.
Al(s) | Al³⁺(aq) || Ni²⁺(aq) | Ni(s)
Which of the following reactions occurs at the anode?

Question

A voltaic cell prepared using aluminum and nickel has the following cell notation. Al(s) | Al³⁺(aq) || Ni²⁺(aq) | Ni(s) Which of the following reactions occurs at the anode?

Quizplus · Accepted Answer

The anode is where oxidation occurs, meaning that electrons are lost. Looking at the cell notation, the anode is on the left side, where aluminum is listed first. The half-reactions listed for A and B both involve aluminum, but A is the correct choice because it shows aluminum losing electrons and forming ions in solution.

A Voltaic Cell Prepared Using Aluminum and Nickel Has the Following