Which answer best describes what is happening in this redox reaction? 4 Fe plus 3 cap o sub 2 rightarrow 2 Fe sub 2 cap o sub 3

In Fe₂O₃, oxygen has an oxidation state of −2, so each iron has an oxidation state of +3. Iron starts as elemental Fe with oxidation state 0, so it loses electrons and is oxidized. The product iron(III) oxide is rust, so the best choice is “Iron is oxidized to form rust.”

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