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  1. L

    how was chem p41 ??!?! expected thresholds ?!?!

    the first part, right? it was -180!
  2. L

    how was chem p41 ??!?! expected thresholds ?!?!

    where was ur centre wonderland ?
  3. L

    how was chem p41 ??!?! expected thresholds ?!?!

    oh yeah i remember i wrote NaBH4 somewhere..
  4. L

    how was chem p41 ??!?! expected thresholds ?!?!

    i think u're hallucinating... :P
  5. L

    how was chem p41 ??!?! expected thresholds ?!?!

    umm sorry i dont remember, can u tell me the question
  6. L

    how was chem p41 ??!?! expected thresholds ?!?!

    2 hrs... :P
  7. L

    how was chem p41 ??!?! expected thresholds ?!?!

    its 24dm3 not 24000
  8. L

    how was chem p41 ??!?! expected thresholds ?!?!

    umm it was 0.23 something like that, im not sure. but it was a very small value
  9. L

    how was chem p41 ??!?! expected thresholds ?!?!

    me too! but i also used the enthalpy of atomisation of O2...which is equal to the bond energy of O2
  10. L

    how was chem p41 ??!?! expected thresholds ?!?!

    no they dint, we had to use the bond energy from the data booklet, some ppl used O-O bond energy. we were supposed to use O=O...
  11. L

    how was chem p41 ??!?! expected thresholds ?!?!

    i got -304 something like that...
  12. L

    how was chem p41 ??!?! expected thresholds ?!?!

    dont write these kinda stuff for them :P what if they're reading all this? :D
  13. L

    how was chem p41 ??!?! expected thresholds ?!?!

    how come :S did u use 494 for enthapy change of atomisation of oxygen?
  14. L

    how was chem p41 ??!?! expected thresholds ?!?!

    ehem ehem ok so what did u get for the enthalpy change of formation? the first question.
  15. L

    how was chem p41 ??!?! expected thresholds ?!?!

    are u guys willing to discuss the paper?!
  16. L

    how was chem p41 ??!?! expected thresholds ?!?!

    u guys dont cry please!! everyone's paper went bad, its not only u guys... hope for a lowww GT inshaAllah and concentrate on ur upcoming exams!!
  17. L

    how was chem p41 ??!?! expected thresholds ?!?!

    what do u guys expect the GT for this paper??? i expect around 55 or less!
  18. L

    Chemistry P4| A2 only

    As we go down the grp, the thermal stability INCEASES cuz the size of the cation increases (anion size remains the same) so the degree of polarisation decreases..distortion of anion cloud decreases and therefore stability increases, i.e. more temp. is needed to break it up...
  19. L

    Chemistry P4| A2 only

    yes. always exo
  20. L

    Chemistry P4| A2 only

    no its either one of them the following is from the mark scheme... acid/H+/HCl etc. or alkali/OH–/NaOH NOT conc H2SO4 or any HNO3 [1] heat/boil/reflux if temp given >90°C
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