Question

The cell diagram for a silver‑zinc button battery is Zn(s),ZnO(s)∣∣KOH(aq)∣∣Ag2O(s),Ag(s) Write the balanced half‑reaction that occurs at the anode during discharge. anode half-reaction: Write the balanced half‑reaction that occurs at the cathode during discharge. cathode half-reaction: Write the balanced overall cell reaction that occurs during discharge. overall cell reaction:

Answer 1

The anode half-reaction is Zn(s) -> Zn²+(aq) + 2e^-. The cathode half-reaction is Ag²O(s) + H2O(l) + 2e^- -> 2Ag(s) + 2OH^-(aq). The overall cell reaction is Zn(s) + 2Ag²O(s) + 2H2O(l) -> Zn²+(aq) + 2Ag(s) + 4OH^-(aq).

Step-by-step explanation:

The balanced half-reaction that occurs at the anode during discharge is:

Zn(s) -> Zn^2+(aq) + 2e^-

The balanced half-reaction that occurs at the cathode during discharge is:

Ag^2O(s) + H2O(l) + 2e^- -> 2Ag(s) + 2OH^-(aq)

The balanced overall cell reaction that occurs during discharge is:

Zn(s) + 2Ag^2O(s) + 2H2O(l) -> Zn^2+(aq) + 2Ag(s) + 4OH^-(aq)