4 H2 + Pb2O4 → 4 H2O + 2 Pb

This is an oxidation-reduction (redox) reaction:

2 PbIV + 8 e- → 2 Pb0 (reduction)

8 H0 - 8 e- → 8 HI (oxidation)

Pb2O4 is an oxidizing agent, H2 is a reducing agent.

Reactants:

  • H2
    • Names: Dihydrogen source: wikidata, accessed: 2019-09-07, Hydrogen source: ICSC, accessed: 2019-09-04source: wikidata, accessed: 2019-09-07, H2 source: wikidata, accessed: 2019-09-07
    • Appearance: Odourless colourless compressed gas source: ICSC, accessed: 2019-09-04
  • Pb2O4

Products:

  • 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
  • Pb
    • Names: Lead source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02, Lead metal source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02, Plumbum source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02
    • Appearance: Bluish-white or silvery-grey solid in various forms. turns tarnished on exposure to air source: ICSC, accessed: 2019-09-04; A heavy, ductile, soft, gray solid. source: NIOSH NPG, accessed: 2019-09-02