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29 May, 18:01

Aqueous hydrochloric acid reacts with solid manganese (iv) oxide to form aqueous manganese (ii) chloride, liquid water and chlorine gas.

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  1. 29 May, 21:05
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    4HCl + MnO₂ → MnCl₂ + 2H₂O + Cl₂

    2Cl⁻ → Cl₂ + 2e⁻

    MnO₂ + 4H⁺ + 2e⁻ → Mn²⁺ + 2H₂O

    2Cl⁻ + MnO₂ + 4H⁺ → Cl₂ + Mn²⁺ + 2H₂O
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