Question

Given the electrochemical cell reaction:

Zn(s) + Ni2+ (aq) → Zn2+ (aq) + Ni(s)

Which species is the reducing agent?

Answer 1

Zinc is the reducing agent in the given electrochemical cell reaction.

Step-by-step explanation:

From the information given in the problem:

Zn(s) → Zn²+ (aq) + 2e¯

The electrode at which oxidation occurs is called the anode. The zinc anode gradually diminishes as the cell operates, due to the loss of zinc metal. The zinc ion concentration in the half-cell increases. Because of the production of electrons at the anode, it is labeled as the negative electrode. Therefore, zinc is the reducing agent in this electrochemical cell reaction.