Question

Why is mno2 added to the decomposition of h2o2 reaction

Answer 1

The answer is to decrease the activation energy.

Answer 2

Answer;

MnO2 acts as a catalyst

Explanation;

• Catalysts are substances that speed up chemical reactions. Catalysts are not consumed during chemical reaction. Catalysts speed up chemical reaction by lowering activitaion energy of the reactants.
• Manganese dioxide catalyzes the decomposition of hydrogen peroxide to oxygen and water. Manganese dioxide is not consumed during the decomposition since it is a catalyst.
• Manganese speeds up the decomposition of hydrogen peroxide by lowering activation energy of hydrogen peroxide.