The iron content of foods can be determined by dissolving them in acid (forming Fe3+), reducing the iron(III) to iron(II), and titrating with cerium(IV): Fe2+(aq) + Ce4+(aq) → Fe3+(aq) + Ce3+(aq). Identify the two half-reactions in the above reaction. oxidation half-reaction reduction half-reaction

Fe²⁺(aq) →  Fe³⁺(aq) + 1e⁻

Ce⁴⁺(aq) + 1e⁻ →  Ce³⁺(aq)

Explanation:

The reaction that takes place is:

The oxidation half-reaction is:

It is an oxidation because the oxidation state of Fe increases from 2+ to 3+.

The reduction half-reaction is:

It is a reduction because the oxidation state of Ce decreases from 4+ to 3+.

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