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  1. K

    The Mole

    dw i got the answer
  2. K

    The Mole

    Which two worlds of chemistry are bridged by the mole idea?
  3. K

    3d trig :( ??

    any tips with 3d trig. interpreting the question into my head is so confusing.
  4. K

    proving trig identities help?

    yeh i was just asking if there are any tips to help
  5. K

    proving trig identities help?

    anyone have any tips with proving trig identities
  7. K

    is getting a job in research hard?

    ^
  8. K

    permutations and combinations help

    yeh thanks
  9. K

    inequalities with x in the denominator

    soz i hope this is better (2x-3)(x-2)>(x-2)^2 (x-2)^2-(2x-3)(x-2)>0 ...now what next um the original question is: 2x-3/x-2>1
  10. K

    trig equations

    when solving trig equation what does things like this mean: solve for 0<x<360 or solve for -180<x<180 or solve for 0<x<pi
  11. K

    permutations and combinations help

    How many arrangements of the letters in the word ISOSCELES are possible if the vowels (i.e. I, 0 and E) must be together? how would you do this?
  13. K

    inequalities with x in the denominator

    i got down to this stage... (2x-3)(x-2)>(x-2)^2 =(x-2)^2-(2x-3)(x-2) i know i have to take (x-2) as common...how do i work it out?
  14. K

    experiiments I should know for exam

    I was wondering what experiments I would have to know for my year 11 chemical earth test, as I am aware they might ask a question on an experiment I have completed.
  15. K

    memorising essays?

    my assessment only has one essay. i heard you can get two or three essays. how would you go about doing that?
  16. K

    memorising essays?

    how is it possible to not memorise anything and write a thousand words in 40 mins?
  17. K

    memorising essays?

    can you give me some tips on memorising an essay, im finding it hard
  19. K

    introductions & conclusions?

    how do you write a good introduction? can you restate the question in your intro? how do you start a conclusion :rolleyes:
  20. K

    formula help please

    can someone help me with the formula for the compound formed between (can u please give reason): 1.sulfur and chlorine 2. hydorgen and iodine 3. silcon and hydrogen 4. phosphorous and fluorine
  21. K

    inequalities with x in the denominator

    eg... 1/x>4 or 4/2x-1<2/3 or 6/5x-2<2
  22. K

    rationalising

    3√2-√3 2√3-√2
  23. K

    good holiday?

    anyone know any good holidays that requires driving there.
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