4 HCl (aq) + MnO2 (s) → MnCl2 (aq) + Cl2 (g) + 2 H2O (l)
This is an oxidation-reduction (redox) reaction:
MnIV + 2 e- → MnII (reduction)
2 Cl-I - 2 e- → 2 Cl0 (oxidation)
MnO2 is an oxidizing agent, HCl is a reducing agent.
Reactants:
- HCl – Chlorane
, 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.]
- Other names: Hydrochloric acid
- MnO2 – Manganese oxide
, Manganese(IV) oxide
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