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  1. narutogirl

    Chemistry doubts..ask here!

    hey good luck to everyone :D
  2. narutogirl

    Chemistry doubts..ask here!

    have a question.. What's the difference between a drying agent and a dehydrating agent n cld u gimme some examples :D
  3. narutogirl

    Randoms About Exam

    oh well u should come to ours..we hear noise a lot while doing the exams -___- and omg the AC wasn't working in the english we were boiling..lol
  4. narutogirl

    Chemistry doubts..ask here!

    at the cathode :)
  5. narutogirl

    I am back and wont leave you ,even if u mistrusted me

    hi ^_^ why can't metal oxide react with cold acid?
  6. narutogirl

    Randoms About Exam

    pm sessions are nice, i get to sleep :P ohh u guyz wanna know my school..well i decided i would say..so here goes..KMIS :P poor haochen has tried saying every school there was in jeddah :lol:
  7. narutogirl

    Chemistry doubts..ask here!

    hey sorry i was the one who is totally wrong..D: i read the question wrong..so ya it is to test for sulfate and there was no sulfate..am so sorry :/
  8. narutogirl

    Chemistry doubts..ask here!

    i have a 2 questions so why do we need to heat a metal oxide when making excess base method..why don't we heat with the other reactants? and what is the difference between a test tube and a boiling tube :)
  9. narutogirl

    Chemistry doubts..ask here!

    you draw two flasks and and attach it to a gas syringe and put a stop watch between the two fasks (i can't really describe the digrams so :/) anyway so you explain that u bring the two catalyst that must be of the same mass and surface area and use the same volume and concentration for the...
  10. narutogirl

    Chemistry doubts..ask here!

    for c)iii..there will be no reaction because HCL and BrCL i use my logic in saying they both have chloride so no way they would react ( i know its stupid but works :P) d)iii) same thing..they just want to trick u
  11. narutogirl

    Chemistry doubts..ask here!

    hehe i am really sorry for making it confusing i myself don't really understand the ionizing thing cuz my teacher said once and i wasn't really paying much attention..>_< http://wiki.answers.com/Q/Why_does_salt_water_rust_faster i think this will help :) oh and this is from another source Iron...
  12. narutogirl

    Chemistry doubts..ask here!

    now i know about freshwater and sea water for fastest its salt water since it has an ionizing effect that would ionize the water and make the rusting process faster fresh water i guess is distilled water because distilled water is the water obtained after making distillation to sea water so it...
  13. narutogirl

    Chemistry doubts..ask here!

    so saying that it is insolube is not enuf..ok :/
  14. narutogirl

    Chemistry doubts..ask here!

    this is what written in my notes strong acid: 0 1 2 weak acid : 3-6 neutral:7 weak alkaline: 8-11 strong acid: 13 14 so ya according to my notes it is a weak alkaline actually in my notes its written 8-9 is ammonia so :/
  15. narutogirl

    Chemistry doubts..ask here!

    hey urw ^_^ i have a question..so in nov 2010 v3 http://www.xtremepapers.me/CIE/Cambridge%20IGCSE/0620%20-%20Chemistry/0620_w10_qp_63.pdf number 5)d)i) they asked about in iron(11)chloride in excess of aq. sodium hydroxide...i like usually said it forms an insoluble precipitate but in the m.s...
  16. narutogirl

    Chemistry doubts..ask here!

    oh that..well look the water would rise so that means the salt is left behind so it has no effect on the rusting..only if the nail or iron stuff is submerged :)
  17. narutogirl

    Chemistry doubts..ask here!

    no, did someone tell you that or did u read it in the mark scheme? i just say use a suitable solvent
  18. narutogirl

    Chemistry Paper 6 - Important notes and repeated questions.

    Re: Chemistry Paper 6 - Important notes and repeated questio hi thnx a lot it really helped but just one thing 47) If water contained salt, this will have no effect on rusting, however if a bigger substance is being rusted, it will be slower. i think salt will help the inoization of water so...
  19. narutogirl

    Chemistry doubts..ask here!

    thnx, that made it clearer :D
  20. narutogirl

    Chemistry doubts..ask here!

    methyl orange acidic: red neutral:orange alkaline:yellow phenolphthalein acidic: colourless neutral : colourless alkaline:pink/purple litmus paper acidic:red neutral:violet alkaline:blue that is wat is in my notes but i somehow feel they r kinda wrong :/
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