What is a catalyst?

A catalyst lowers the activation energy of a reaction and therefore increases the rate of reaction. The catalysts reacts with the reactants but is regenerated again in the reaction so it is not used up.

HG
Answered by Hannah G. Chemistry tutor

5601 Views

See similar Chemistry GCSE tutors

Related Chemistry GCSE answers

All answers ▸

Why are metals good conductors of electricity?


Describe why diamond is hard and graphite is soft?


Explain how the differences in structure between Diamond and Graphite give rise to their different properties


67.2 g of iron was found to react with 28.8 g of oxygen. What is the empirical formula of iron oxide?


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2026 by IXL Learning