Question

Write an equation for the reaction between hydrogen peroxide and manganese(iv)oxide

Answer 1

Answer:

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Explanation:

Manganese dioxide does not react with hydrogen peroxide, it acts as a catalyst in the decomposition of hydrogen peroxide into water + oxygen.

The word equation is:

Manganese dioxide + hydrogen peroxide = manganese dioxide + water + oxygen

The real equation is:

MnO2 + H2O2 = MnO2 + H2O + 0.5O2(g)

Change in Free Energy: ΔG(20C) = -116.1kJ (negative, so the reaction runs)

Change in Enthalpy: ΔH(20C) = -98.0kJ (negative, so the reaction is exothermic)