A student mixes two colourless solutions in a conical flask. A cloudy solid forms in the mixture as the reaction proceeds.
Which method is suitable for following this reaction?
Time how long the mixture takes to hide a mark under the flask
Time how long the solid takes to settle at the bottom of the flask
Use a gas syringe to measure the volume of the cloudy product
Time how long the cloudy mixture takes to become clear again
122 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.