Hi IGCSE Chemistry students
Complete revision notes for Cambridge IGCSE Chemistry 0620, free and open to anyone. One set of pages covers both tiers: anything only Extended candidates need (the syllabus’s Supplement) is marked EXTENDED. Every page has objectives, explanations, diagrams, a worked example and practice questions with answers. The questions are my own, written in the style of the current papers. — Mr. Suta
Syllabus 0620
Core & Extended
Exams 2026–2029
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🧭Start here
📚The topics
1States of matter
2aAtoms, elements and isotopes
2bBonding and structure
3aFormulae, equations and relative masses
3bThe mole and calculations
4Electrochemistry
5Chemical energetics
6aPhysical and chemical change, rates
6bReversible reactions, equilibrium and redox
7Acids, bases and salts
8The Periodic Table
9Metals
10Chemistry of the environment
11aOrganic formulae, fuels, alkanes and alkenes
11bAlcohols, carboxylic acids and polymers
12aExperimental techniques
12bIdentifying ions and gases
📜A note on past papers
None of the practice questions is copied from a Cambridge paper. Work through real past papers from your school as well; the subject content is the same in the 2023–2025, 2026–2028 and 2029 syllabuses, so recent papers all test what these notes cover.