Group 4: Sciences
Free IB Chemistry notes covering the full Structure and Reactivity syllabus, from particulate nature and bonding through thermochemistry, kinetics, equilibrium, acids and bases, and redox and organic mechanisms, with worked examples and an interactive data booklet.
Syllabus coverage
Work through the course in order or jump directly to the area you need to revise. Each public topic guide includes a clear introduction, a worked example, a complete unit outline, and links to the formulas used.
Structure 1: Particulate Nature is a core part of IB Chemistry. This guide connects the syllabus ideas behind Kinetic Theory of Matter, Changes of State, Gas Behaviour and Diffusion, Atomic Structure and Isotopes, Mass Spectrometry and Atomic Models and 4 more units, shows how they appear in worked problems, and points you to the formulas and full lessons needed for exam revision.
9 units · 19 lessons
Structure 2: Bonding and Structure is a core part of IB Chemistry. This guide connects the syllabus ideas behind Ionic Bonding and Lattice Structure, Properties of Ionic Compounds, Covalent Bonding, Bond Polarity and Intermolecular Forces, Metallic Bonding and 2 more units, shows how they appear in worked problems, and points you to the formulas and full lessons needed for exam revision.
7 units · 14 lessons
Structure 3: Classification of Matter is a core part of IB Chemistry. This guide connects the syllabus ideas behind Periodic Trends, Group Chemistry, Introduction to Organic Chemistry, Isomerism and IUPAC Nomenclature, shows how they appear in worked problems, and points you to the formulas and full lessons needed for exam revision.
4 units · 8 lessons
Reactivity 1: What Drives Reactions? is a core part of IB Chemistry. This guide connects the syllabus ideas behind Thermochemistry Fundamentals, Calorimetry, Energy Cycles, Bonding and Enthalpy, Entropy and Spontaneity, shows how they appear in worked problems, and points you to the formulas and full lessons needed for exam revision.
5 units · 10 lessons
Reactivity 2: How Much, How Fast, How Far? is a core part of IB Chemistry. This guide connects the syllabus ideas behind Stoichiometry, Limiting Reagent and Yield, Rate of Reaction, Rate Laws and Mechanisms, How Far? The Extent of Chemical Change, shows how they appear in worked problems, and points you to the formulas and full lessons needed for exam revision.
5 units · 10 lessons
Reactivity 3: Mechanisms of Change is a core part of IB Chemistry. This guide connects the syllabus ideas behind Acid–Base Theories, pH Calculations and Buffers, Oxidation States and Redox, Electrochemical Cells, Substitution Reactions and 2 more units, shows how they appear in worked problems, and points you to the formulas and full lessons needed for exam revision.
7 units · 14 lessons
Internal Assessment is a core part of IB Chemistry. This guide connects the syllabus ideas behind Internal Assessment Guide, shows how they appear in worked problems, and points you to the formulas and full lessons needed for exam revision.
1 units · 4 lessons
Assessment
IB Chemistry combines external written examinations with practical work and a scientific investigation for internal assessment. SL and HL share a common core, with HL extending each Reactivity and Structure section into additional depth. Students should confirm current paper conditions in the official IB subject brief.
Assessment arrangements can change. Confirm dates, paper conditions, permitted technology, and weighting with your school and the official awarding body before an examination.
Free interactive reference
Search the key equations, constants, and reference values used across IB Chemistry, with variables defined and each formula connected to revision notes.
Open the full reference →Reviewed by the Study to Learn editorial team · Updated 2026-08-04