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  1. S

    Chemistry paper 3 doubts here!!!

    Hey thanks alot :D i kinda got it :P
  2. S

    Chemistry paper 3 doubts here!!!

    http://www.xtremepapers.me/CIE/Cambridg ... 9_qp_3.pdf Can someone solve q5 part b for me pleaseee, its sooo confusing :S
  3. S

    Chemistey Doubts

    Q4 part b is all about calculating moles :D (i)->100-92.3= 7.7% (ii)->92.3/12(carbons Mr)= 7.69 and 7.7/1(hydrogens Mr) = 7.7 so therefore its 1:1 (iii)->since its a 1:1 ratio the empirical formula would be CH and molecular formula would be 12+1=13 then divide the mass of the compound...
  4. S

    Chemistry paper 3 doubts here!!!

    Thank youu soo much :D :Yahoo!:
  5. S

    Chemistry paper 3 doubts here!!!

    Could you draw it for me pleaseeee? :(
  6. S

    Chemistry P3 doubts!

    yup like that i guess with the brackets and the n outside :P
  7. S

    English Literature Paper 5

    Hey, i did this paper too :D i did Romeo and Juliet :D
  8. S

    Chemistry P3 doubts!

    You draw the same structure that they have drawn in part B just remove the double bond between the 2 carbon atoms and draw the whole thing 3 times as they wanted 3 monomer units :)
  9. S

    Chemistry paper 3 doubts here!!!

    Heyy i have alot of doubts in chem paper 3 so i thought ill start this new thread...please ppl help mee :( http://www.xtremepapers.me/CIE/Cambridg ... _qp_31.pdf Q4, c(ii) how do i draw that? :S
  10. S

    Chemistey Doubts

    Do u mind solving it here pleaseeeeeeeeeeeeeeeeeee :( i dont get it :( :oops:
  11. S

    Chemistey Doubts

    yea it has some metal properties and some non-metal properties like silicon or germanium :) They are also called metalloids :)
  12. S

    Chemistey Doubts

    Boron is a semi metal! :D
  13. S

    Chemistey Doubts

    I dont get that either :(
  14. S

    Chemistry Paper 1 Doubts Here... !

    http://www.xtremepapers.me/CIE/Cambridg ... 7_qp_1.pdf Can some one please explain number 35 :oops: please and thank you :D
  15. S

    IGCSE CHEMISTRY STUDY GUIDE UPLOAD

    hey i live in qatar too :) What school are u in? :)
  16. S

    Which textbook you use for chemistry...

    I am using this book too and everyone from my center think it sucks :/
  17. S

    PHY. Cathode Ray Oscilloscopes HELP.

    Can some please explain the topic about a transformer :S i dont understand anything from it ! :(
  18. S

    Chemistry doubts..ask here!

    Hey guys :D im gonna go now :D good luck to all of youll :D
  19. S

    Chemistry doubts..ask here!

    Just apply the paint somwhere (on a wall) start the timer and check if its dry (using you hand :P)
  20. S

    Chemistry doubts..ask here!

    hey you guys we dont need to know extractions of metals for paper 6 right? :S and what about the habour process and contact process(sulphur)? :S not important for paper 6 right? :S
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