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  1. daredevil

    Maths, Addmaths and Statistics: Post your doubts here!

    what?? my answer is coming 1:2 and besides how could R be less than r?? according to 10:1 answer r is 10x as big as R!! that's not possib;e. there must b some mistake!!
  2. daredevil

    Maths, Addmaths and Statistics: Post your doubts here!

    HEyy guys!! the nightmare question for me: w11_4042 paper 22 question 8(c)(iii) ......... plz hury up and tell me how we can calculte calues for B and C!!
  3. daredevil

    uhh.... i'm not sure cuz i don't remember a few of my answers but IA above 75!!

    uhh.... i'm not sure cuz i don't remember a few of my answers but IA above 75!!
  4. daredevil

    prepared and done! it went good. i hope the same happens with p2

    prepared and done! it went good. i hope the same happens with p2
  5. daredevil

    yup!! :| i hope it goes good. wbu?

    yup!! :| i hope it goes good. wbu?
  6. daredevil

    Maths, Addmaths and Statistics: Post your doubts here!

    Heyy guys mathematics questions: Summer 2008 paper 2 - Q2b(iii) -Q4b(iv)(b) please reply asap :) and hello again to fellow nerds of the batch!! ;)
  7. daredevil

    ummm.... round abt 10!! :|

    ummm.... round abt 10!! :|
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  8. daredevil

    no actually it wasn't but thank God the paper had nothing to do with it. so i'm gud. :)

    no actually it wasn't but thank God the paper had nothing to do with it. so i'm gud. :)
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  9. daredevil

    Biology; Chemistry; Physics: Post your doubts here!

    Saying goodbye to this most awesome thread on XPF! :| e had our own moments of fights, jokes, serious discussions and off-tpic IPLs :LOL: but everything was worth it. it helped so much in the prepertion of our first public examination!! so thanks for that/ Special thanks to syed1995 Dukeofwin...
  10. daredevil

    Biology; Chemistry; Physics: Post your doubts here!

    don't know about the first question exactly but for the second question is it simple cell or electrolytic?? if simple then the more reactive will b the anode (Zinc). is that ryt? :cautious:
  11. daredevil

    Biology; Chemistry; Physics: Post your doubts here!

    i double checked the ms ryt now there are 2 equations for this reaction in it: 2H2O - 2e- --> 2H+ + O2 and the other one is: 2H2O --> 2H+ + O2 + 2e- again in both the equations the H is not balancing out...!! :/
  12. daredevil

    Biology; Chemistry; Physics: Post your doubts here!

    Idk... he said he will :whistle: :cautious: :P hurry up syed1995 .... with that equation... plzz... meri light chali jaaye gi :P :LOL: o.O
  13. daredevil

    Biology; Chemistry; Physics: Post your doubts here!

    exactly my point!! i can't get it. lets seee if syed can do it then he'll explain...
  14. daredevil

    Biology; Chemistry; Physics: Post your doubts here!

    is it used in iron extraction?? just a guess. also check if it is used in flue gas desulphrisation. but check b4 u rely on my words bcuz i ha yet to revise those topics -___-
  15. daredevil

    Biology; Chemistry; Physics: Post your doubts here!

    no, all conditions are considered. this is probably the smallest and the dumbest and yet the worst topic of the chemistry syllabus to be frank :mad:
  16. daredevil

    Biology; Chemistry; Physics: Post your doubts here!

    o.O which electrons shud i remove. sorry i am beat ryt now... all i can think of is this formula and that reaction. its all mixed up!! :cry:
  17. daredevil

    Biology; Chemistry; Physics: Post your doubts here!

    this is a reversible reactin ryt? and CO2 is a product. so if we decrease the amount of any of the products in a reversible reaction the reaction shifts to the right to overcome that decrease so more CaCO3 breaks up into CaO and CO2 to compensate the amount of CO2! hope it helped ^__^
  18. daredevil

    Biology; Chemistry; Physics: Post your doubts here!

    helpp!! QA4 (b)(ii) from O/N 2011 paper 21 of chemistry. the question is: During a stage in photosynthesis, electrons are removed from water to produe hydrogen ions and oxygen gas. Write an equation for this reaction. i wrote: 2H2O --> 4H+(aq) + O2(g) but in the marking scheme it is given: 2H2O...
  19. daredevil

    Biology; Chemistry; Physics: Post your doubts here!

    Thanks a load!! u made my day!! Allah karey ap ka A* aaye! :) (Aameen)
  20. daredevil

    Biology; Chemistry; Physics: Post your doubts here!

    y won't a gas b made?? wud carbonate not react with Mg? o.O
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