4 Al (s) + 3 O2 (g) → 2 Al2O3 (s)

This is an oxidation-reduction (redox) reaction:

4 Al0 - 12 e- → 4 AlIII (oxidation)

6 O0 + 12 e- → 6 O-II (reduction)

Al is a reducing agent, O2 is an oxidizing agent.

Reactants:

  • Al
    • Names: Aluminum source: wikidata, accessed: 2019-09-07source: NIOSH NPG, accessed: 2019-09-02, Aluminium powder source: ICSC, accessed: 2019-09-04, Al source: wikidata, accessed: 2019-09-07
    • Appearance: Silvery-white-to-grey powder source: ICSC, accessed: 2019-09-04; Silvery-white, malleable, ductile, odorless metal. source: NIOSH NPG, accessed: 2019-09-02
  • O2
    • Names: Dioxygen source: wikidata, accessed: 2019-09-07, Oxygen source: ICSC, accessed: 2019-09-04source: wikidata, accessed: 2019-09-07, Oxygen (liquefied) source: ICSC, accessed: 2019-09-04
    • Appearance: Odourless compressed gas source: ICSC, accessed: 2019-09-04; Liquefied gas. colourless-to-blue extremely cold liquid source: ICSC, accessed: 2019-09-04

Products:

  • Al2O3
    • Names: Aluminium oxide (Aluminum oxide) source: wikipedia, accessed: 2019-09-27, Aluminum oxide source: wikidata, accessed: 2019-09-02, Aluminium oxide source: ICSC, accessed: 2019-09-04source: wikidata, accessed: 2019-09-02
    • Appearance: White solid source: wikipedia, accessed: 2019-09-27; White powder source: ICSC, accessed: 2019-09-04; White, odorless, crystalline powder. source: NIOSH NPG, accessed: 2019-09-02