4 Al(NO3)3 (aq) → 3 O2 (g) + 12 NO2 (l) + 2 Al2O3 (s)

This is an oxidation-reduction (redox) reaction:

12 NV + 12 e- → 12 NIV (reduction)

6 O-II - 12 e- → 6 O0 (oxidation)

Al(NO3)3 is an oxidizing agent, Al(NO3)3 is a reducing agent.

This is a precipitation reaction: Al2O3 is the formed precipitate.

This is a gas evolution reaction, O2 is the formed gas.

Reactants:

  • Al(NO3)3 – Aluminium nitrate source: wikipedia, accessed: 2019-09-27
    • Other names: Nitric Aluminum salt source: wikipedia, accessed: 2019-09-27, Aluminum nitrate source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02, Aluminium(III) nitrate source: wikipedia, accessed: 2019-09-27
    • Appearance: White crystals, solid | hygroscopic source: wikipedia, accessed: 2019-09-27

Products:

  • 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
  • NO2 – Nitrogen dioxide source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02
    • Other names: Nitrogen(IV) oxide source: wikipedia, accessed: 2019-09-27, Deutoxide of nitrogen source: wikipedia, accessed: 2019-09-27, Nitrogen peroxide source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02
    • Appearance: Brown gas source: wikipedia, accessed: 2019-09-27; Reddish-brown gas or brown or yellow liquid with pungent odour source: ICSC, accessed: 2019-09-04; Yellowish-brown liquid or reddish-brown gas (above 70°F) with a pungent, acrid odor. [Note: In solid form (below 15°F) it is found structurally as N2O4.] source: NIOSH NPG, accessed: 2019-09-02
  • 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