4 Mn(OH)2 + O2 → 2 Mn2O3 + 4 H2O

This is an oxidation-reduction (redox) reaction:

4 MnII - 4 e- → 4 MnIII (oxidation)

2 O0 + 4 e- → 2 O-II (reduction)

Mn(OH)2 is a reducing agent, O2 is an oxidizing agent.

Reactants:

  • Mn(OH)2
    • 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:

    • Mn2O3
      • Names: Manganese(III) oxide source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02, Dimanganese trioxide source: wikipedia, accessed: 2019-09-27, Manganese sesquioxide source: wikipedia, accessed: 2019-09-27
      • Appearance: Brown or black crystalline source: wikipedia, accessed: 2019-09-27
    • H2O – Water, oxidane source: wikipedia, accessed: 2019-09-27
      • Other names: Water (H2O) source: wikipedia, accessed: 2019-09-27, Hydrogen hydroxide (HH or HOH) source: wikipedia, accessed: 2019-09-27, Hydrogen oxide source: wikipedia, accessed: 2019-09-27
      • Appearance: White crystalline solid, almost colorless liquid with a hint of blue, colorless gas source: wikipedia, accessed: 2019-09-27