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  1. S

    Attendance Register

    Present :p
  2. S

    Biology; Chemistry; Physics: Post your doubts here!

    https://sites.google.com/site/urbangeekclassroomsg/chemistry-classroom/electrolysis#TOC-Electrolysis-of-Aqueous-Solution
  3. S

    Biology; Chemistry; Physics: Post your doubts here!

    I'm doing A-levels right now but I had some sweet notes for electrolysis. It was related to the electrochemical series. This might help you. At cathode In CONCENTRATED solutions of nickel/lead compound, nickel/lead will be discharged instead of hydrogen ions of water which is less reactive...
  4. S

    The official count to 10,000 topic

    721
  5. S

    GT for Chemistry paper 22 AS.

    and btw the gt will be around 45 cause even though the paper was short and I found it relatively easy as compared to the May/June 11 papers, there are some blunders everyone made. Like most of you got the pressure, temperature and catalyst wrong. Empirical formula seems to differ from here and...
  6. S

    GT for Chemistry paper 22 AS.

    Enthalpy Change was= -129 KJ/mol The structure for question 5 was = OHCH2COCH2OH, By just getting this right, obviously the whole question will be alright. First question= Colored flame produced was with Na, P and S The smaller angle was of sulfurs
  7. S

    GT for Chemistry paper 22 AS.

    Wheres the OH?
  8. S

    Physics: Post your doubts here!

    Thank you so much! :)
  9. S

    Physics: Post your doubts here!

    Help in question number Question.5 (C) (i) (ii) http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s10_qp_21.pdf M.S http://www.xtremepapers.com/papers/CIE/Cambridge International A and AS Level/Physics (9702)/9702_s10_ms_21.pdf Please...
  10. S

    Chem P2 any guesses ?????

    Can you read all the posts above you? If you can then I just answered your question. Your welcome, come again.
  11. S

    Chem P2 any guesses ?????

    and don't rely on guesses. Prepare for the worst, hope for the best! :) Best of luck ya'll! :D Lets ace Chemistry Inshallah!
  12. S

    Chem P2 any guesses ?????

    My guess is Enthalpy Change, Moles(Not sure as it was asked recently) and do learn the diagram of haber process. It was only asked once in 2002 O/N. And learn the halogen chapter very well. I'm expecting a question from it
  13. S

    The Unofficial count to 0.

    9962
  14. S

    A level Biology: Post your doubts here!

    No probs!
  15. S

    Chemistry: Post your doubts here!

    Delta H reaction=Bond Energy Of reactants - B.E of Products You don't need to worry about exo or endo. Try to solve it with this.
  16. S

    Chemistry: Post your doubts here!

    = Bond Energy Of Reactants - Bond Energy Of Products
  17. S

    MY INBOX! Did you get it?

    MY INBOX! Did you get it?
  18. S

    How many significant figures do we give for values in chemistry?????

    Dude its simple, in this question give the moles to 1 significant figure. a(i) 12/ 44 x 1.32= 0.36g 0.36/12= 0.03 moles (ii) 0.06/1= 0.06 g =0.06 moles There you go I even solved the moles part for you :p
  19. S

    A level Biology: Post your doubts here!

    No they just said mangrove trees which means H. If they said all the mangrove trees the it would've been B.
  20. S

    A level Biology: Post your doubts here!

    Yes its because it just said mangrove trees, not all the mangrove trees in the area.
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