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  1. Abu mota

    CHEMISTRY < LEAKED PAPERS or any Question

    organic chemistry and moles and rates of reaction rest just read, if u didnt study until now :rolleyes:
  2. Abu mota

    Calculating heat chnge in a reacti using bond energy?:/

    i think that the easiest way to do this is to draw them as structural formula and count the number of lines (bonds) and multiply the energy in kj/mol which is usually written in the question. then do this for the exothermic part where u just use negative numbers instead of positive numbers and...
  3. Abu mota

    CHEMISTRY < LEAKED PAPERS or any Question

    we arenot miracle workers, the only way to get an A* is to study :/ or do past papers and learn from your mistakes :rolleyes:
  4. Abu mota

    Physics p61

    oh just like as phantom said, u just copied the distances from the paragraph and d/mm
  5. Abu mota

    Chemistry Doubts: IGCSE Paper 3

    4 a)ii) this is precipitation any soluble zinc salt like for example: zinc nitrate+sodium carbonate= zinc carbonate+ sodium nitrate. 4 b) Fe+ 3OH= Fe(OH)3 doesnt need explanation ii) i dont know why srry
  6. Abu mota

    Physics p61

    what is that question, cud u explain it more plz
  7. Abu mota

    Chemistry p3 1990's past papers needed urgently!

    Which paper variant and June or november
  8. Abu mota

    Physics p61

    i think it makes sense only in the first one but the second one, in my opinion, doesnt.
  9. Abu mota

    Chemistry p3 1990's past papers needed urgently!

    i just checked 1998 as i have a book which starts from 1996 and i didnt find any repeated questions. i think he lied to u lol
  10. Abu mota

    Chemistry p3 1990's past papers needed urgently!

    how did u know :p if u dont have 1990s :p
  11. Abu mota

    Chemistry p3 1990's past papers needed urgently!

    bro they wont help u, alot of the syllabus changed, just do the most recent, they are the most useful.
  12. Abu mota

    Hard/challenging paper 3 chemistry.

    http://78.159.163.23:9204/745DAE5D005D0F2D5DA11D4B189B7518EB26BD05E20D960B4B9B4819646CD69038327A766CB0B2D6E30D25E50/www.xtremepapers.com/papers/CIE/Cambridge%20IGCSE/Chemistry%20(0620)/0620_s09_qp_3.pdf 5)b
  13. Abu mota

    Physics p61

    1) water lost when emptying water from testtube 20 finger one 1) the tube isnt all filled 2) water lost while pouring
  14. Abu mota

    Physics p61

    parallax is wrong bro, he said assume that he measured everything accurately as much as i remember
  15. Abu mota

    Hard/challenging paper 3 chemistry.

    may june 2009 ir is easy but there is one question which is hard the one with the precipitate thingy
  16. Abu mota

    Physics p61

    Mass is in kg or g etc.... but not newtons and it did say mass
  17. Abu mota

    Paper 6 - post your doubts are

    Just draw a box to represent the cylinder and then measure the ends of the cylinder and then add those measurements and divide by two. I hope I helped
  18. Abu mota

    how to draw this circuit question? 2005 oct/nov physics p6?

    http://www.xtremepapers.com/community/attachments/2a-png.11390/ someone answered me And this is the answer
  19. Abu mota

    CHEMISTRY P3!!!!!!!

    all, most importantly organic chemistry then moles then rates of reaction then bonding and thats it the rest if u dont have time read it but it is better to study all :D
  20. Abu mota

    how to draw this circuit question? 2005 oct/nov physics p6?

    i dont know the answer too :(
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