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  1. xIshtar

    Chemistry paper 3 doubts here!!!

    Two CH3 bonded together, with one Sulphur bonded to them all, it is a covalent compounds, so electrons are shared.
  2. xIshtar

    Chemistry P3 doubts!

    Yep, think so ;D
  3. xIshtar

    Chemistry p3 help!

    Right, the oxidation state of iron denotes the number of valency electrons. This is not always the case, but it is so with iron. So, as there is one less electron, only 2/3 of the volume used in the first one would be needed, so it would level off at 8cm^3 Hope I helped :)
  4. xIshtar

    Chemistry paper 12 discussion!!!!!!!!!!

    Yey, I only made 2 mistakes :D
  5. xIshtar

    Chemistry paper 12 discussion!!!!!!!!!!

    Me too, thats definitely a high A dude.
  6. xIshtar

    Chemistry paper 12 discussion!!!!!!!!!!

    Still an awesome result, definitely a high A. Well done :D
  7. xIshtar

    Chemistry paper 12 discussion!!!!!!!!!!

    I did the steel making process wrong, and maybe the cables.. So I think I got 38 :D
  8. xIshtar

    Chemistry paper 12 discussion!!!!!!!!!!

    And my book confirms this in the fermentation chapter, as it says, moist yeast, and glucose + yeast + water in the reaction..
  9. xIshtar

    Chemistry paper 12 discussion!!!!!!!!!!

    I put light, as it isn't a photochemical reaction, in a past paper I saw that water was needed :S
  10. xIshtar

    Chemistry paper 12 discussion!!!!!!!!!!

    Yeah :D
  11. xIshtar

    Chemistry paper 12 discussion!!!!!!!!!!

    Till now, 38/40 for me :D
  12. xIshtar

    Chemistry paper 12 discussion!!!!!!!!!!

    What I put too.
  13. xIshtar

    Chemistry paper 12 discussion!!!!!!!!!!

    What did you guys write for the steel alloy question, with the two statements?
  14. xIshtar

    Chemistry paper 12 discussion!!!!!!!!!!

    The answer was insoluble soluble, as the residue was reacted in the first one, and the filtrate in the second.. I might get 38/40 if what I put for the steel alloy question is right, what did you guys put?
  15. xIshtar

    Chemistry paper 12 discussion!!!!!!!!!!

    The answer was nitrates only. Asked my teacher and she confirmed it.
  16. xIshtar

    Chemistry paper 12 discussion!!!!!!!!!!

    Me too :( Considering worst case senario, and the discussion thats been going on I've got 37 :/
  17. xIshtar

    Chemistry paper 12 discussion!!!!!!!!!!

    It was dilute.
  18. xIshtar

    Chemistry paper 12 discussion!!!!!!!!!!

    If it was overhead, it's aluminium, if underground, it could be copper.
  19. xIshtar

    Chemistry paper 12 discussion!!!!!!!!!!

    Yeah, I read substation too.. But it could still be aluminium.
  20. xIshtar

    chemistrey paper 11 stainless steel alloy question

    What I chose too.
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