Question

what role does magnese dioxide play in the decomposition of hydrogen peroxide

Answer 1

Manganese dioxide acts as a catalyst to the hydrogen peroxide's decomposition. It is chemically unchanged throughout the process because it is a catalyst, making it unconsumed by the hydrogen peroxide reaction.

Answer 2

Role of Manganese dioxide is that it catalyzes the decomposition of hydrogen peroxide to oxygen and water.

second role of manganese dioxide is that, it is unchanged chemically throughout the process of decomposition because manganese dioxide is a catalyst is nature. it is used to make it unconsumed by the reaction of hydrogen peroxide.