Chemistry

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GCSE

Exothermic and Endothermic Reactions

Question

What is the definition of a catalyst?

3 years ago

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1 Reply

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K

Katlyn Quitzon


1 Answer

L
Liam Ryan

A substance which when added to a chemical reaction it speeds up the rate at which the reaction occurs. It does this by lowering the minimum energy required for the chemicals to react, also known as activation energy.

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