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  1. A

    Chemistry MCQ thread...

    http://www.xtremepapers.me/CIE/Internat ... _qp_11.pdf Q.4 Please? And Explain as well!
  2. A

    Chemistry MCQ thread...

    Ammonium sulfate in nitrogenous fertilisers in the soil can be slowly oxidised by air producing sulfuric acid, nitric acid and water. How many moles of oxygen gas are needed to oxidise completely one mole of ammonium sulfate? A 1 B 2 C 3 D 4 Explain please!
  3. A

    Chemistry Help!

    Camphor is a white solid which was used to make the early plastic celluloid. Camphor contains the same percentage by mass of hydrogen and oxygen. What is the molecular formula of camphor? A C10H6O6 B C10H8O C C10H16O D C10H10O2 15 Ammonium sulfate in nitrogenous fertilisers in the soil can...
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    Chemistry Help!

    Hey some help on Chemistry! I find them useful! http://www.chemsheets.co.uk/
  5. A

    chem mcq...

    hey how d0 you print these questions? I tried taking a screen shot but it just won't work. . the whole page gets printed instead!
  6. A

    How did Physics P22 go?

    Okay so i did much better than i expected! :D What was the time and magnitude of resultant velocity in Q1? And what was the phase difference? And why was The Battery A used for storage or what ever it was?
  7. A

    Physics p22 Predictions?

    Hey i heard exact same stuff!
  8. A

    The Ultimate AS Physics Thread

    http://www.xtremepapers.me/CIE/Internat ... 8_qp_2.pdf Hey can anyone help me (in abit of detail) on Q6 part b
  9. A

    Help on Uncertainty needed!

    buh the marking scheme says 2.69 ± 0.09 g cm-3 =S
  10. A

    Biology P21 ....

    You mean p22? It was so easy man...yeah the enzymes bit was not that easy and a few parts in the haemoglobin which were worth 1 or 2 maRKS ...buh over all i found it really easy! it may be around 45 i guess
  11. A

    Physics help!

    Hey how to we make estimates of something in physics for example : 1 Make reasonable estimates of the following quantities. (a) the frequency of an audible sound wave frequency = ........................................... Hz [1] (b) the wavelength, in nm, of ultraviolet radiation wavelength =...
  12. A

    Help on Uncertainty needed!

    The mass of a cube of aluminium is found to be 580 g with an uncertainty in the measurement of 10 g. Each side of the cube has a length of (6.0 ± 0.1) cm. Calculate the density of aluminium with its uncertainty. Express your answer to an appropriate number of significant figures.
  13. A

    bio p22

    Hey i wrote that it binds to the subunits of ribosome thus inhibits translation! And second point a guess that it acts as an inhibitor (which i know is wrong) You kow i was about to write the same thing as you but then i thought it's kind of the same pount cx if mRNA can't bind then no way tRNA...
  14. A

    Phy p2 help!:(

    I Hate Pacific! It is hell confusing and longman i havn't been throught the whole book yet. You know what these 'Singapore' books for H1 and H2 make you confuse i'm doing my physics from a UK A LEVEL book called Advanced Physics for you! It is so simple and all my concepts are cleared cx of tht...
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    Help on Electricity!

    Heyyyyy! Most people have abit of problem in electricity in physics so here is some great help for it http://www.youtube.com/user/Steve4Physics
  16. A

    Biology Paper 22!

    It did! Thanks
  17. A

    Sugessitions for tomorrows Biology P2.!

    Hey bruv isn't that like the nearly the whole syllabus lol!
  18. A

    Biology Paper 22!

    Heyyyy! Any idea's on what's coming up for Bio tomorrow?
  19. A

    Question about graph in physics p33!

    Heyyy...thanks it actually did help but still abit of confusion on y intercept...why will the line cut the y axis when we have line of best fit?
  20. A

    Question about graph in physics p33!

    Heyy i want all details about the graph produced in the paper ..i've heard it carries alot of marks. So, i want to know how to do the labelling of the axis and what type of graph is produced i'e curved/line of best fit e.t.c and yeah the y intercept as well (this bit specially) btw I've not...
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