Two types of combustion
Two types of combustion

Combustion is the burning of a fuel in oxygen. For a hydrocarbon, the amount of oxygen available determines whether combustion is complete or incomplete.
Step-by-step lessons on Edexcel GCSE Chemistry 9.1.4 Complete and incomplete combustion. 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.