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Edexcel CHEMISTRY DOUBTS!!!!

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Saladin:
Post 'em all here!!!!

I do Edexcel AS chemistry!

Blizz_rb93:
Does anyone have any worksheets for Edexcel chemistry unit 3 practicals???

ksitna:
yeah i dont really know what to study for unit 3 :/

Blizz_rb93:

--- Quote from: ksitna on May 08, 2010, 09:25:13 pm ---yeah i dont really know what to study for unit 3 :/

--- End quote ---

Here I just found this


1. Make a salt and calculate the percentage yield (hydrated nickel sulfate)
2. make a salt and calculate the percentage yield (ammonium iron(II) sulfate)
3. carry out and interpret results of simple test tube reactions
4. measuring some enthalpy changes
5. finding the enthalpy of combustion of an alcohol
6. finding an enthalpy change that cannot be measured directly
7. reaction of alkanes
8. reaction of alkenes
9. experiment to find the effect of electrostatic force on jets of liquid
10. solubility of simple molecules in different solvents
11. thermal decomposition of group 2 nitrates and carbonates
12. flame tests on compounds of group 1 and 2
13. simple acid-base titrations
14. oxidation of metal and non-metallic elements and ions by halogens
15. disproportion reactions with cold and hot alkali
16. iodine/thiosulfate titration and the determination of purity of potassium iodate(V)
17. reactions between halogens and halide ions/some reactions of the halides
18. factors that influence the rate of chemical reactions
19. effect of temperature, pressure and concentrations on equilibrium
20. reactions of alcohols
21. preparation of organic liquid (reflux and distillation)
22. preparation of a halogenoalkane from an alcohol
23. reactions of the halogenoalkanes.

But I need some worksheets to help me get the idea they want lol

Saladin:
There is no need for worksheets. Just do the ppqs from Jan 04 to Jan 2010. That is more than enuf practice!

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