Cl2 + H2O → HCl + HClO – Balanced equation

Or you want a quick look:

This is an oxidation-reduction (redox) reaction:

Cl - 1 e- ClI (oxidation)

Cl + e- Cl-I (reduction)

Cl2 is both an oxidizing and a reducing agent (disproportionation (dismutation)).

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Reactants:

  • Cl2
    • Names: Chlorine , Molecular chlorine
    • Appearance: Greenish-yellow compressed liquefied gas with pungent odour ; Greenish-yellow gas with a pungent, irritating odor. [Note: Shipped as a liquefied compressed gas.]
  • H2OWater, oxidane
    • Other names: Water (H2O) , Hydrogen hydroxide (HH or HOH) , Hydrogen oxide
    • Appearance: White crystalline solid, almost colorless liquid with a hint of blue, colorless gas

Products:

  • HClChlorane , Hydrogen chloride
    • Other names: Hydrochloric acid , M , Uriatic acid
    • Appearance: Colorless, transparent liquid, fumes in air if concentrated ; Colorless gas ; Colourless compressed liquefied gas with pungent odour ; Colorless to slightly yellow gas with a pungent, irritating odor. [Note: Shipped as a liquefied compressed gas.]
  • HClOHypochlorous acid, chloric(I) acid, chloranol, hydroxidochlorine
    • Other names: Hypochlorous acid , Hydrogen hypochlorite , Chlorine hydroxide
    • Appearance: Colorless aqueous solution
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