3 Mg + Fe₂O₃ → 3 MgO + 2 Fe

This is an oxidation-reduction (redox) reaction:

Mg is a reducing agent, Fe₂O₃ is an oxidizing agent.

Reactants:

• Mg
  • Names: Magnesium , Magnesium (powder) , Magnesium (pellets) ... show moreMg , Element 12 , Magnesium turnings show less
  • Appearance: Grey powder ; Silvery-white metallic solid in various forms
• Fe₂O₃ – Iron(III) oxide
  • Other names: Ferric oxide , Hematite , Ferric iron ... show moreRed iron oxide , Rouge , Maghemite , Colcothar , Iron sesquioxide , Rust , Ochre , Iron oxide dust and fume (as Fe) , Iron oxide red , Red oxide , Anhydrous ferric oxide , Iron (III) oxide , Diiron trioxide , Iron trioxide , Ferric sesquioxide , Iron(III) oxide [Iron oxide dust and fume (as Fe)] , Iron(III)oxide [Rouge] show less
  • Appearance: Red-brown solid ; Reddish brown-to-black crystals or powder ; Reddish-brown solid. [Note: Exposure to fume may occur during the arc-welding of iron.] ; A fine, red powder of ferric oxide. [Note: Usually used in cake form or impregnated in paper or cloth.]

Products:

• MgO – Magnesium oxide
  • Other names: Magnesia , Periclase , Magnesium oxide fume ... show moreMgO , Magmitt , Calcined brucite , Calcined magnesia , Magnesia fume show less
  • Appearance: White powder ; Hygroscopic fine white powder ; Finely divided white particulate dispersed in air. [Note: Exposure may occur when magnesium is burned, thermally cut, or welded upon.]
• Fe
  • Names: Iron , Fe , Element 26 ... show moreFer , 26Fe , Eisen , Ferrum , Hierro , Carbonyl iron , Electrolytic iron , Ferrum metallicum , Iron powder , Iron, carbonyl , Iron, electrolytic , Iron, elemental , Iron, reduced , Reduced iron show less