Why is mno2 added to the decomposition of h2o2 reaction

The correct answer is because MnO2 accelerates decomposition.

Explanation:

Manganese dioxide acts as a catalyst in the decomposition of hydrogen peroxide (H2O2), thus accelerating its decomposition.  

Catalysts accelerate the speed of reactions by lowering the activation energy barrier between reagents and products.

As oxygenated water breaks down, oxygen is released faster when MgO2 is present as a catalyst in the reaction.

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a. a primary source combines several different accounts of an event. b. a primary source generally benefits from having been written after an event.

explanation:

answer by yourhope:

how do models compare to real-world objects?

d. most models represent a real-world object in a simpler way.

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