A student investigates the rate of reaction between zinc granules and dilute sulfuric acid. They collect the hydrogen gas produced in a gas syringe.
State how the student will know from the gas syringe that the reaction has finished.
Practise Edexcel GCSE Chemistry Rates of reaction with exam-style questions for Foundation and Higher tier. 166 questions, matched to the Edexcel GCSE Chemistry (1CH0) specification and written in Paper 1 and Paper 2 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.