• We need your support!

    We are currently struggling to cover the operational costs of Xtremepapers, as a result we might have to shut this website down. Please donate if we have helped you and help make a difference in other students' lives!
    Click here to Donate Now (View Announcement)

Search results

  1. étudiante

    hey guyz ! unit 3 bio discussion , doubts in here !!

    basically dats wats needed ;) at least dats wat we were thought n i dont think ne much more was needed really.... i managed AS wid dis :P welcum ;) incubation temp is the temp at which u'll let the bacteria multiply.... analysis of the results ofc! i mean u use a graph sheet/wire mesh n...
  2. étudiante

    Chemistry: Post your doubts here!

    only substances in the slowest step r der in the rate eqn... thus if a substance is not present in da slow step, the order will become 0 automatically... for the other substances, see the no of molecules of that substance involved in the slow step... the order will be the same number... for the...
  3. étudiante

    sure... i'll try... link please... :)

    sure... i'll try... link please... :)
  4. étudiante

    hey guyz ! unit 3 bio discussion , doubts in here !!

    ohk! dat 1! dere isnt much in dat... u need to prepare a sterile agar n pour it in2 a petri dish.... when set, put a drop of bacterial soln on the agar n then use a sterile spreader to make a lawn.. grind the plant leaves with ethanol n filter out the solution... cut out paper discs of equal...
  5. étudiante

    nopes! ^_^

    nopes! ^_^
  6. étudiante

    hey guyz ! unit 3 bio discussion , doubts in here !!

    i got DAT miss :P i mean which practical is it? the antibiotic one?
  7. étudiante

    Biology; Chemistry; Physics: Post your doubts here!

    i dont think u got wat m saying... :) u dont need 2 pass electricity thru sumthing 2 ionise it... ur wish ;) i got it though :) Its ok :)
  8. étudiante

    it means he's ma bestie so he knows ma oder frnd hum m missing ^_^

    it means he's ma bestie so he knows ma oder frnd hum m missing ^_^
  9. étudiante

    Hello... seems ur new here! Welcome :)

    Hello... seems ur new here! Welcome :)
  10. étudiante

    Biology; Chemistry; Physics: Post your doubts here!

    it is the common reason for it... salt cannot ionise the water :)
  11. étudiante

    Biology; Chemistry; Physics: Post your doubts here!

    its like dis.... water will ionise majorly only if an acid is present... so the conc of OH- is very low... by comparison, Cl- ions will be more than the OH- ions :) so comparitively Cl- is more...
  12. étudiante

    hey guyz ! unit 3 bio discussion , doubts in here !!

    which core practical is dis again?
  13. étudiante

    Biology; Chemistry; Physics: Post your doubts here!

    dere ARE NO OH- ions in dat solution becuse water will not ionise in prescence of a salt! Cl- is the (majorly) the anion present dere... (OH- ions will be VERY low in conc... negligible really)
  14. étudiante

    Doubts....

    A2 students..... for BIO 5 to wat extent do we need to know labelling of the brain? i have been given a VERY detailed one n i wanna know how much is needed... Thanks in advance ;)
  15. étudiante

    Edexcel A2 Physics [Units 4,5and6] Doubts Here (:

    Sure... lets all help out each other :) does ne1 have a list of the practcals for A2 physics unit 8? i have for chem but cant find for physics...
  16. étudiante

    hey guyz ! unit 3 bio discussion , doubts in here !!

    wat excly do u wanna know again? i cant get wat ur asking sorry....
  17. étudiante

    Biology; Chemistry; Physics: Post your doubts here!

    the water is not going to ionise in dis case... there wont be any OH- ions because there is no acid to promote ionisation (there will be a ver small quantity acctually) so effectively its the Cl- ions which are in excess compared to OH-
  18. étudiante

    Biology; Chemistry; Physics: Post your doubts here!

    the mark scheme isnt wrong... it is taken as dilute and Cl2 is discharged preferentially to O2... the reason for this is that there is a discharge series (rather like a reactivity series) which helps us to decide which ion will be discharged... u can basically remember that Cl2 is quite high in...
  19. étudiante

    Biology; Chemistry; Physics: Post your doubts here!

    :LOL: dats chemisrty's nick which i call it by :love: (neway... back 2 topic ;))
  20. étudiante

    Biology; Chemistry; Physics: Post your doubts here!

    i dont think so.... m pretty sure its considred dilute.... :ROFL: u murdered my chemmy baby? :cry:
Top