CH-1663
Catalysts
Chemistry · Secondary 4 · Medium · Catalysts
The decomposition of hydrogen peroxide is speeded up by adding manganese(IV) oxide. Which statement best describes the role of manganese(IV) oxide?
- It increases the activation energy of the reaction.
- It is used up and cannot be recovered at the end.
- It provides an alternative reaction pathway with lower activation energy.
- It changes the enthalpy change of the reaction.
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