2 Na + O2 → Na2O2

This is an oxidation-reduction (redox) reaction:

2 Na0 - 2 e- → 2 NaI (oxidation)

2 O0 + 2 e- → 2 O-I (reduction)

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

Reactants:

  • Na
    • Names: Sodium source: wikidata, accessed: 2019-09-07source: ICSC, accessed: 2019-09-04, Na source: wikidata, accessed: 2019-09-07, Element 11 source: wikidata, accessed: 2019-09-07, Natrium source: wikidata, accessed: 2019-09-07source: ICSC, accessed: 2019-09-04
    • Appearance: Silvery solid in various forms source: ICSC, accessed: 2019-09-04
  • 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:

  • Na2O2
    • Names: Sodium peroxide source: wikipedia, accessed: 2019-09-28source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04, Disodium dioxide source: wikipedia, accessed: 2019-09-28, Flocool source: wikipedia, accessed: 2019-09-28
    • Appearance: Yellow to white powder source: wikipedia, accessed: 2019-09-28; Yellow-to-white powder source: ICSC, accessed: 2019-09-04