Based on the oxidation states of the atoms in this reaction, answer the questions. Fe (0) + O2 (0) → Fe2 (3+) O3 (2-) How many electrons does the iron half-reaction lose? How many electrons does the oxygen half-reaction gain?

Half reaction 1: 2Fe° → Fe₂³⁺ + 6e⁻ / * 2.

4Fe° → 2Fe₂³⁺ + 12e⁻.

Iron is oxidized from neutral charge (0) to oxidation number + 3, one iron lose three electrons, two irons lose six electrons and four irons twelve electrons.

Half reaction 2: 12e⁻ + 3O₂ → 2O₃²⁻

Oxygen is reduced from neutral chage to oxidation number - 2, one oxygen gain two electrons, six oxygens gain twelve electrons.

Balanced chemical reaction: 4Fe + 3O₂ → 2Fe₂O₃.