A student breaks a lump of marble into small chips. What happens to the marble as it is broken up?
Its surface area to volume ratio increases
Its surface area to volume ratio decreases
Its total volume increases and its mass falls
Its total surface area falls and its mass rises
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.