Catalyst
Define catalyst
A substance that speeds up a chemical reaction by providing an alternative pathway of lower activation energy. Catalyst are not used up and remain chemically unchanged at the end of the reaction.
What does an enzyme do
Breaks down bonds between particles
What does bio washing powder contain
Catalysts called enzymes which break up food and other stains fast
Give some examples of a catalyst
Iron oxide-Speeds up the production of ammonia for fertilisers
What factors effect a reaction
Temperature
Define activation energy
The minium amount of energy required for a collision to be successful