The list gives five changes a student could make to a reaction.
adding a catalyst
cooling the reaction mixture
using larger pieces of a solid reactant
using a more concentrated solution
adding water to a solution
Choose two changes from the list that increase the rate of a reaction.
Complete the sentence.
The minimum amount of energy that particles must have in order to react is called the
Give the name of the theory that explains how these factors affect the rate of a reaction.
41 exam-style questions on AQA GCSE Chemistry 6.1 Rate of reaction, covering 6.1.1a Calculating rates of reactions, 6.1.1b Gradient of a tangent as rate, 6.1.2 Factors which affect the rates of chemical reactions, 6.1.3 Collision theory and activation energy, and 6.1.4 Catalysts. Each one has a worked solution and a mark scheme showing where the marks go.