6 NO2- + 5 Cr2O72- + 46 H+ 10 (Cr)3+ + 6 NO3- + 23 H2O

This is an oxidation-reduction (redox) reaction:

6 N0 - 30 e- 6 NV (oxidation)

10 CrVI + 30 e- 10 CrIII (reduction)

NO2- is a reducing agent, Cr2O72- is an oxidizing agent.

Reactants:

  • NO2-
  • Cr2O72-
  • H+

Products:

  • Cr3+
  • NO3-Nitrate source: wikipedia, accessed: 2019-09-27
    • Other names: Nitrate ion source: wikidata, accessed: 2019-09-07, NO3(-) source: wikidata, accessed: 2019-09-07, [NO3](-) source: wikidata, accessed: 2019-09-07
  • H2OWater, 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