What is catalysis?

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B.tech m.tech from nit with 20 yrs of teaching experience.

The substance, generally metal,which increases or decreases the rate of reaction
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Catalysts are substances that speed up a reaction but which are not consumed by it and do not appear in the net reaction equation
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Math Magician

Catalysis is the process of increasing the rate of a chemical reaction by adding an additional substance known as catalyst.The catalyst decreases the activation energy required by a chemical reaction to occur which helps the chemical reaction to occur at a faster rate.
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Tutor

Catalysis is a substance which initiates or speeds up the chemical reaction.
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Maths Tutor

The process of changing rate of reaction using an external agent called catalyst is called catalysis
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