IGCSE Chemistry topic guides

One page per topic: the ideas it tests, the mistakes that cost marks, and an exam-style question worked through step by step.

Topics

• Tests for cationsIdentification of ions and gases
• Naming apparatus and its useApparatus and measurement
• Sources of error and improving accuracyAnalysis, errors and planning
• Isotopes and relative atomic massAtoms, elements and compounds
• Balancing symbol equationsFormulae and equations
• Tests for anionsIdentification of ions and gases
• Giant and simple structures and their propertiesChemical bonding
• Identifying a substance from observationsQualitative analysis