A student cooled the reaction mixture during an investigation into the reaction between magnesium ribbon and dilute hydrochloric acid.
Explain, in terms of particles and collisions, how decreasing the temperature affects the rate of this reaction.
87 exam-style questions on Edexcel GCSE Chemistry 8.1 Rates of reaction, covering 8.1.1 Measuring and interpreting rates of reaction, 8.1.2 Collision theory and the factors affecting rate, and 8.1.3 Catalysts and enzymes. Each one has a worked solution and a mark scheme showing where the marks go.