What is an alkene?
What is an alkene?
An alkene is an unsaturated hydrocarbon containing a carbon to carbon double bond. The general formula of the alkene homologous series is CnH2n\text{C}_n\text{H}_{2n}CnH2n.
Step-by-step lessons on Edexcel GCSE Chemistry 10.2.2 Alkenes and the C=C functional group. Each one builds up to exam-style questions. Nail the core quantitative topics — moles, balancing equations and calculations — early on, since they underpin higher-tier questions across every paper and topic.