AS Starters and Revision

Read our general notes on Risk Assessment

This section is the help you right at the start of the AS course - or IB or Scottish Highers - when you are finding your feet and then later when you find yourself revising for a test or examination.
 
See also the sources of revision notes under Beat the examiners. The web guides there suggest sites to visit for free notes and guidance on-line.

back to AS Chemistry

Tutorials

• Chemical formulae: compounds with both ionic and covalent bonding
• Chemical formulae: the formulae of covalent substances
• Balancing equations
• Chemical formulae: the formulae of ionic compounds

Recently Asked Questions

• Could you please tell me how to obtain the formula of calcium sulphate. Please note that I know it is Na₂SO₄ but what I want to know is HOW to obtain that answer.
• Can you help me understand spectator ions. I would like a clear definition. Thank you
• I'm a bit confused; what's the difference between a reagent and a reactant? Or isn't there one?

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Tests

• AS Revision test - chemical amounts
• AS Revision test - physical chemistry
• Starter test for AS: chemicals and their reactions
• Starter test for AS: formulae, equations and amounts

updated: 06 September 2007