Question

in the following chemical reaction, which element is the oxidizing agent? 3sn(no₃)₂(aq) + 2fe(s) → 2fe(no₃)₃(aq) + 3sn(s)

Explanation:

Step1: Determine oxidation states

In $Sn(NO_3)_2$, Sn has an oxidation state of +2. In elemental Sn, the oxidation state is 0. Fe has an oxidation state of 0 in elemental form and +3 in $Fe(NO_3)_3$. Nitrogen and oxygen oxidation - states remain the same in the reaction.

Step2: Identify the oxidizing agent

The oxidizing agent is the substance that is reduced (gains electrons and has a decrease in oxidation state). Sn goes from +2 in $Sn(NO_3)_2$ to 0 in Sn, so Sn is reduced.

Answer:

A. Sn