Essential Equations

This is not mine, it is from this lovely website here:
http://www.a-levelchemistry.co.uk

They are from the AQA section and cover all the equations that you need to know for the unit 2 exam

 These notes go into more detail than is necessary, and I am hoping to upload condensed versions soon :)

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  • Created by: Megan1808
  • Created on: 31-05-13 18:38
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UNIT 2 ­ THE ESSENTIAL EQUATIONS

Group 7, The Halogens

1. Cl2(aq) + 2Br(aq) Br2(aq) + 2Cl(aq) displacement

2. Cl2(aq) + 2I(aq) I2(aq) + 2Cl(aq) displacement

3. Br2(aq) + 2I(aq) I2(aq) + 2Br(aq) displacement

4. H2SO4 + Cl HSO4 + HCl acidbase

5. H2SO4 + 2H+ + 2e SO2 +…

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21. Ca2+(aq) + SO42(aq) CaSO4(s) solubility of sulphates

22. Sr2+(aq) + SO42(aq) SrSO4(s) solubulity of sulphates

23. Ba2+(aq) + SO42(aq) BaSO4(s) solubulity of sulphates

Extraction of Metals

Extraction of iron

24. C(s) + O2(g) CO2(g) heat the furnace

25. C(s) + CO2(g) 2CO(g) produce the main reducing agent

26. Fe2O3(s)…

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38. WO3(s) + 3H2(g) W(s) + 3H2O(g) extracting tungsten

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