3 N2H4 (aq) + 2 NaBrO3 (aq) → 3 N2 (g) + 2 NaBr (aq) + 6 H2O (l)

This is an oxidation-reduction (redox) reaction:

2 BrV + 12 e- → 2 Br-I (reduction)

6 N-II - 12 e- → 6 N0 (oxidation)

NaBrO3 is an oxidizing agent, N2H4 is a reducing agent.

This is a gas evolution reaction, N2 is the formed gas.

Reactants:

  • N2H4 – Hydrazine source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04source: NIOSH NPG, accessed: 2019-09-02
    • Other names: Diamine; source: wikipedia, accessed: 2019-09-27, Diazane source: wikidata, accessed: 2019-09-02, Tetrahydridodinitrogen source: wikidata, accessed: 2019-09-02
    • Appearance: Colorless, fuming, oily liquid source: wikipedia, accessed: 2019-09-27; Colourless fuming oily hygroscopic liquid with pungent odour source: ICSC, accessed: 2019-09-04; Colorless, fuming, oily liquid with an ammonia-like odor. [Note: A solid below 36°F.] source: NIOSH NPG, accessed: 2019-09-02
  • NaBrO3 – Sodium bromate source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02source: ICSC, accessed: 2019-09-04
    • Other names: Sodium bromate(V) source: wikipedia, accessed: 2019-09-27, Bromic acid source: wikipedia, accessed: 2019-09-27, Sodium salt source: wikipedia, accessed: 2019-09-27
    • Appearance: Colorless or white solid source: wikipedia, accessed: 2019-09-27; Colourless crystals source: ICSC, accessed: 2019-09-04

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
  • NaBr – Sodium bromide source: wikipedia, accessed: 2019-09-27source: wikidata, accessed: 2019-09-02
    • Other names: Bromide salt of sodium source: wikidata, accessed: 2019-09-02, Trisodium tribromide source: wikidata, accessed: 2019-09-02, NaBr source: wikidata, accessed: 2019-09-02
    • Appearance: White powder, hygroscopic 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