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IB Diploma · Chemistry

IB Chemistry Revision

Interactive topic lessons for the current IB Chemistry guide (first assessment 2025), organised by the Structure and Reactivity themes. Higher Level and Standard Level are separate — pick your level for each sub-topic.

Learn itInteractive mini-lessons for your exam boardPLAY22 free revision gamesVelvet RevisionYour IB Chemistry course mapFree PDF100 AI prompts for IB Chemistry
Content follows the current Chemistry guide (first assessment 2025): two themes — Structure (the nature of matter) and Reactivity (how and why reactions occur). Most sub-topics have both SL and HL content; a few contain Additional Higher Level (AHL) material, and Reactivity 1.4 (Entropy and spontaneity) is HL only.
SL lesson HL lesson coming soon

Theme: Structure

Structure 1 · Models of the particulate nature of matter
S1.1 Introduction to the particulate nature of matter SL & HL
SL + HL
S1.2 The nuclear atom
SLHL
S1.3 Electron configurations
SLHL
S1.4 Counting particles by mass: the mole
SL + HL
S1.5 Ideal gases
SL + HL
Structure 2 · Models of bonding and structure
S2.1 The ionic model
SLHL
S2.2 The covalent model
SLHL
S2.3 The metallic model
SLHL
S2.4 From models to materials
SLHL
Structure 3 · Classification of matter
S3.1 The periodic table: classification of elements
SLHL
S3.2 Functional groups: classification of organic compounds
SLHL

Theme: Reactivity

Reactivity 1 · What drives chemical reactions?
R1.1 Measuring enthalpy changes SL & HL
SL + HL
R1.2 Energy cycles in reactions
SLHL
R1.3 Energy from fuels SL & HL
SL + HL
R1.4 Entropy and spontaneity HL only
SL —HL
Reactivity 2 · How much, how fast and how far?
R2.1 How much? The amount of chemical change SL & HL
SL + HL
R2.2 How fast? The rate of chemical change
SLHL
R2.3 How far? The extent of chemical change
SLHL
Reactivity 3 · What are the mechanisms of chemical change?
R3.1 Proton transfer reactions
SLHL
R3.2 Electron transfer reactions
SLHL
R3.3 Electron sharing reactions
SLHL
R3.4 Electron-pair sharing reactions
SLHL

Mini-lessons

Short, interactive lessons on a single topic — worked through step by step, then checked with questions. Free, no login.

IB HL

Acid-base equilibria (AHL) Classifying organic compounds Counting particles Electrochemistry (AHL) Electron transfer Energy cycles, entropy and spontaneity (AHL) How fast, how far How much? Mechanisms of chemical change Models of bonding and structure Proton transfer Rate laws and equilibrium calculations (AHL) The nuclear atom The periodic table and periodicity What drives reactions

IB SL

Classifying organic compounds Counting particles Electron transfer How fast, how far How much? Mechanisms of chemical change Models of bonding and structure Proton transfer The nuclear atom The periodic table and periodicity What drives reactions
Cover of 100 AI Prompts for IB Chemistry
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100 AI Prompts for IB Chemistry

Print-and-paste prompts built around the Velvet Method, so ChatGPT tests your thinking instead of doing it for you.

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Teaching IB Diploma Chemistry? Free interactive lessons to set as class work, homework or cover. No student login. HL · SL