A student investigates the rate of reaction between calcium carbonate chips and dilute hydrochloric acid.
Which of the following changes would increase the rate of this reaction?
Use the same acid but at a lower concentration
Use a larger conical flask
Use a larger gas syringe
Grind the calcium carbonate chips into a fine powder
127 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.