what is a catalyst

A substance that increases the rate of a reaction without having been used up itself in the reaction. They function by providing a lower activation energy for the reaction to begin, which is a type of threshold.

SC
Answered by Samuel C. Chemistry tutor

1985 Views

See similar Chemistry GCSE tutors

Related Chemistry GCSE answers

All answers ▸

Why does iodine havea higher boiling point compared to chlorine?


What is the difference between Ionic and Covalent Bonding


What mass of MgCl2 is formed in the following equation if 48g of Mg react in the following equation: Mg + 2HCI -> MgCI 2 + H


The student did another experiment using 20 cm3 of sodium hydroxide solution with a concentration of 0.18 mol/dm3 . Relative formula mass (Mr) of NaOH = 40 Calculate the mass of sodium hydroxide in 20 cm3 of this solution.


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:

© 2025 by IXL Learning