The carbon dioxide test
The carbon dioxide test
Carbon dioxide is a gas made from carbon and oxygen, with one carbon atom for every two oxygen atoms. It is tested using limewater, a colourless solution of calcium hydroxide.
Step-by-step lessons covering AQA GCSE Chemistry 8.2.3 Test for carbon dioxide for Foundation and Higher tier. Each lesson works through exam-style questions in Paper 1 and Paper 2 format. Nail the core quantitative topics — moles, balancing equations and calculations — early on, since they underpin higher-tier questions across every paper and topic.