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
Related Chemistry GCSE answers
All answers ▸If an element has an atomic mass of 19 and a proton number of 9, how many neutrons does it have and how many electrons does it have?
How do I draw a dot and cross diagram to show covalent bonds?
67.2 g of iron was found to react with 28.8 g of oxygen. What is the empirical formula of iron oxide?
Sodium Hydroxide can react with sulfuric acid in an acid base reaction. Outline the equation for this reaction, name the product. Finally a titration reaction is conducted. Determine the mass of NaOH needed to neutralise 12.4cm^3 of 0.10moldm^-3 H2SO4.