Chemistry

>

GCSE

Exothermic and Endothermic Reactions

Question

What is the definition of a catalyst?

3 years ago

·

1 Reply

·

1628 views

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.

Think you can help?

More Chemistry GCSE Questions
Sherpa Badge

Need a GCSE Chemistry tutor?

Get started with a free online introductions with an experienced and qualified online tutor on Sherpa.

Find a GCSE Chemistry Tutor