ClO3- + 6 (Fe)2+ + 6 H+ → 6 (Fe)3+ + (Cl)- + 3 H2O

This is an oxidation-reduction (redox) reaction:

ClV + 6 e- → Cl-I (reduction)

6 FeII - 6 e- → 6 FeIII (oxidation)

ClO3- is an oxidizing agent, Fe2+ is a reducing agent.

Reactants:

  • ClO3-
  • Fe2+
  • H+

Products:

  • Fe3+
  • Cl-
  • 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