Definitions

Accuracy: Relates to how closely the measured value in an experiment corresponds to the true

value.

Catalysts: Provide a lower activation energy for a reaction to occur by providing an alternative

reaction route. A catalyst does not affect the equilibrium since it increases the rate of the

forward and backward reaction equally.

Excess: When a reactant is in excess there is more than the required amount for the reaction,

having certain reactants in excess is can be required so that further substitution reactions do not

occur.

Flammable: A substance that can be set on fire easily.

Irritant: A substance which causes an inflammation or discomfort to the body, contact with

these substances should be avoided.