When zinc metal reacts with dilute sulfuric acid to investigate how temperature affects the rate of reaction, a highly flammable gas, hydrogen (H2H_2H2), is produced.
Give one safety precaution that the student should take when carrying out this experiment, other than wearing safety goggles.
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.