2 HN3 + CuO → 3 N2 + Cu + H2O

This is an acid-base reaction (neutralization): HN3 is an acid, CuO is a base.

This is an oxidation-reduction (redox) reaction:

CuII + 2 e- → Cu0 (reduction)

6 N-1/3 - 2 e- → 6 N0 (oxidation)

CuO is an oxidizing agent, HN3 is a reducing agent.

Reactants:

  • HN3 – Hydrogen azide source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02
    • Other names: Hydrazoic acid source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02, N3H source: wikidata, accessed: 2019-09-02, [NNNH] source: wikidata, accessed: 2019-09-02, Triazoic acid source: wikidata, accessed: 2019-09-02
    • Appearance: Colorless, highly volatile liquid source: wikipedia, accessed: 2019-09-27
  • CuO – Copper(II) oxide source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02
    • Other names: Cupric oxide source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02, Copper monoxide source: wikidata, accessed: 2019-09-02, Copper oxide source: wikidata, accessed: 2019-09-02
    • Appearance: Black to brown powder source: wikipedia, accessed: 2019-09-27

Products:

  • N2
    • Names: Dinitrogen source: wikidata, accessed: 2019-09-07, Nitrogen (compressed gas) source: ICSC, accessed: 2019-09-04, Nitrogen (liquified) source: ICSC, accessed: 2019-09-04
    • Appearance: Odourless colourless compressed gas source: ICSC, accessed: 2019-09-04; Odourless colourless extremely cold liquid source: ICSC, accessed: 2019-09-04
  • Cu
    • Names: Copper source: wikidata, accessed: 2019-09-07source: ICSC, accessed: 2019-09-04, Copper (dusts and mists, as Cu) source: NIOSH NPG, accessed: 2019-09-02, Cu source: wikidata, accessed: 2019-09-07
    • Appearance: Solid in various forms. turns green on exposure to moist air source: ICSC, accessed: 2019-09-04; Reddish, lustrous, malleable, odorless solid. source: NIOSH NPG, accessed: 2019-09-02
  • 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