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  1. W

    Guys how did you find Biology Paper 21

    In the end, it's not going to matter how many breaths you took, but how many moments took your breath away (biology 21 was one)
  2. W

    Guys how did you find Biology Paper 21

    this was 4 marks this question 2 not question 3
  3. W

    Guys how did you find Biology Paper 21

    the enzyme was carbonic anhydrase i wrote that significant of equation .. THAT HYDROGEN CAUSE THE HAEMOGLOBIN TO DISSCIATE THE 4 OXYGEN MOLECULES AT THE RESPIRING TISSUES AND THE HYDROCARBONIC IONS LEAVES THE RED BLOOD CELL MOVING TO PLASMA LEAVING THE CELL WITH OVERALL NET OF POSITIVE CHARGE...
  4. W

    Guys how did you find Biology Paper 21

    wow i think grade threshold will be 45 - 47......it cant be 50 :)
  5. W

    Biology P21 ....

    Feelguud77 is right blank pages are to utilised when necessary .........i did it in my socialogy paper in igcses..........
  6. W

    Biology P21 ....

    wow i think grade threshold will be 45 - 47......it cant be 50 :)
  7. W

    BIOLOGY PAPER 21

    Re: BIOLOGY PAPER OF 21 THERE ONE QUESTION ABOUT IDENTIFICATION OF GROUPE I WROTE WAS IT RIGHT WAS FRUCTOSE,AMINE,AMIDE,PHOSPHATE............ BOLLACK.S... CORRECT ME IF I AM WRONG................. :D :O:
  8. W

    BIOLOGY PAPER 21

    HEAVENSAKE !!! THIS WAS FREAKING EASIEST PAPERS EVERRRRR SO GRADE THRESHOLD WILL BE SOMETHING 45 - 47 :beer: :lol:
  9. W

    how was chemistry p21?????!!!

    http://answers.yahoo.com/question/index ... 056AA4Dxtr http://answers.yahoo.com/question/index ... 554AAyh4mS BOTH OF OUR ANSWERS R CLOSE TO THE RESPECTIVE LINK CHECK IT OUT ONLY THE THINGS IS THAT WHAT WAS FORMULA THE C2H4 OR C2H2 I AM SURE IT WAS C2H4
  10. W

    how was chemistry p21?????!!!

    PROBLEM SOLVED http://answers.yahoo.com/question/index ... 056AA4Dxtr
  11. W

    how was chemistry p21?????!!!

    ANY HOW UR EQUATION FORMING IS WRONG ............ http://www.ausetute.com.au/heatform.html http://chemed.chem.wisc.edu/chempaths/G ... n-551.html
  12. W

    how was chemistry p21?????!!!

    OK BUT R U SURE THAT IT C2H2(Acetylene (systematic name: ethyne) NOT C2H4(ETHYLENE)
  13. W

    how was chemistry p21?????!!!

    exampasser CHECK THIS
  14. W

    how was chemistry p21?????!!!

    enthalpy of formation is formation of compound from its element........ it C2H4 http://ocw.mit.edu/courses/chemistry/5- ... 16_s05.pdf OXIDITION OF ALKYNES WONT GIVE CO2 + H20
  15. W

    how was chemistry p21?????!!!

    this is wrong i am sure
  16. W

    how was chemistry p21?????!!!

    IT CANT BE +200 SOMETHING BECAUSE IT WAS C2H4(ETHENE) NOT C2H2(ALKYNE) S0.........YOU GET WHAT QUOTED.... RATHER COMPLICATED EXPLANATION GIVEN TO ME BY YOU ME REALLY IRRITATES ME.... I KNOW YOU GET +266 SOMETHING IF H2 + 2C --> C2H2 S0 2(-288) + 2(392))-(-1300)=+266 KJMOL-1-------------SO...
  17. W

    how was chemistry p21?????!!!

    LIBRA94 WHAT DID U GET FOR ENTHALPY ONE
  18. W

    how was chemistry p21?????!!!

    PLEASE COMMENT ON ENTHALPY OF FORMATION!!! :shock:
  19. W

    how was chemistry p21?????!!!

    exampasser WHAT ABOUT THE ENTHALPY OF FORMATION ONE
  20. W

    how was chemistry p21?????!!!

    Bollocks ! , I DID MANY MISTAKES.....................
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