Oxidation Gain Electron
f water to form iron oxide (rust, Fe₂O₃). Iron atoms lose electrons to oxygen atoms, becoming oxidized (Fe → Fe³⁺ + 3e⁻). Oxygen atoms gain these electrons, becoming reduced (O₂ + 4e⁻ → 2O²⁻). Combustion: Burning fuel, like wood or gasoline, involves oxidation. The carbo