Question

What is a catalyst? write the name of the catalyst used in the proparation of oxygen in the laboratory​

Answer 1

Answer:

Catalysis is the process of increasing the rate of a chemical reaction by adding a substance known as a catalyst. Catalysts are not consumed in the reaction and remain unchanged after it. Often only very small amounts of catalyst are required

Explanation:

Manganese dioxide is used in the preparation of oxygen from hydrogen peroxide.

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Answer 2

Answer:

Catalyst, in chemistry, any substance that increases the rate of a reaction without itself being consumed. ... During the reaction between the chemical intermediates and the reactants, the catalyst is regenerated.

Explanation:

Manganese dioxide is used in the preparation of oxygen from hydrogen peroxide.

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