Equations and equilibrium
Free ESAT Chemistry lesson. Worked examples, common mistakes and a self-check.
What the lesson covers
- Reactions rearrange atoms (C3.1)
- Formulae of ionic compounds (C3.2)
- State symbols (C3.3)
- Balancing equations (C3.4)
- Ionic equations and half-equations (C3.4)
- Reversible reactions and dynamic equilibrium (C3.5)
- Shifting the equilibrium (C3.5)
- Self-check questions with answers (8)
Specification: C3.1-3.5. Codes follow the UAT-UK ESAT content specification.
How to use it
- Read a section, then cover the worked example and try it yourself.
- Check the common mistakes list: these are the slips the real test is built to catch.
- Do the self-check without looking back. Mark it against the answers.
- Then practise the topic under time, with the matching practice set.
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