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 Reaction rates and reversible reactions questions and answers

The curves shown below were obtained when two equal volumes of hydrogen peroxide of the same
concentration were allowed to decompose separately.
31.PNG
In one case, manganese (IV) oxide was added to the hydrogen peroxide. Which curve represents the decomposition of hydrogen peroxide with manganese (IV) oxide? Explain.

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Answer Text:
- Curve I: This is because manganese (IV) oxide is a catalyst and increases the rate of decomposition of the hydrogen peroxide.


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