Choose a topic to begin
Your notes and examples will appear here.
Understand the why, connect the ideas, and walk into your next exam with confidence.
Start with the particle model, then connect structure to properties and reactions.
Test one essential idea before moving on.
All 22 numbered syllabus topics in order, plus chemistry skills and practical work. Every topic includes explanations, key ideas and a worked example.
Your notes and examples will appear here.
Four-term Chemistry plan, following the topic order and teaching time supplied.
The individual entries below add up to 58 weeks, while the source states 60 weeks. The extra two weeks may be reserved for school-specific activities or review; please confirm with your teacher.
| Topic | Focus | Weeks |
|---|---|---|
| S1.1 | Introduction to the Particulate Nature of Matter | 1 |
| S1.4 | The Mole | 2 |
| S1.5 | Ideal Gases | 2 |
| R2.1 | Amount of Chemical Change | 2 |
| S1.2 | The Nuclear Atom | 1.5 |
| S1.3 | Electron Configuration | 2.5 |
| S3.1 | The Periodic Table | 3 |
| S2.1–S2.2 | Ionic and Covalent Bonding; Metals and Models to Materials | 4 |
| Topic | Focus | Weeks |
|---|---|---|
| S2.3–S2.4 | Ionic and Covalent Bonding; Models to Materials | 4 |
| R1.1 | Enthalpy Changes and Spontaneity | 5 |
| R2.2 | Rate of Chemical Change (Reaction Kinetics) | 3 |
| Tools | Basic Coverage / Review of Tools and Skills | 2 |
| CSP | Collaborative Sciences Project | 2 |
| Topic | Focus | Weeks |
|---|---|---|
| R2.3 | The Extent of Chemical Change (Equilibrium) | 2 |
| R3.1 | Proton Transfer Reactions (Acids and Bases) | 4 |
| R3.2 | Electron Transfer Reactions | 3 |
| IA | Scientific Investigation | 5 |
| Topic | Focus | Weeks |
|---|---|---|
| S3.2 | Functional Groups and Stereochemistry | 2 |
| R3.3–R3.4 | Electron and Electron-Pair Sharing Reactions | 4 |
| Connections | Making Connections Between Topics | 2 |
| Review | Course Review | 2 |
Core equations with definitions, units and reminders about when to use them.
Select any element to see its atomic number, relative atomic mass and family.
Atomic number 1 · Relative atomic mass 1.008 · Non-metal
Practice essential concepts with instant feedback and short explanations.
Use the right relationship, enter your values and keep track of units.
Calculate the molar mass of a formula.
Calculate amount concentration.
For a strong monoprotic acid at 25 °C.
Balance simple chemical equations.
A chemistry-focused helper that explains ideas step by step and supports your own learning.