(Cr2O7)2- + 6 (Fe)2+ + 14 H+ → 6 (Fe)3+ + 2 (Cr)3+ + 7 H2O

This is an oxidation-reduction (redox) reaction:

2 CrVI + 6 e- → 2 CrIII (reduction)

6 FeII - 6 e- → 6 FeIII (oxidation)

(Cr2O7)2- is an oxidizing agent, Fe2+ is a reducing agent.

Reactants:

  • (Cr2O7)2-
  • Fe2+
  • H+

Products:

  • Fe3+
  • Cr3+
  • 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