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  1. Namehere

    Chemistry: Post your doubts here!

    And if the cause that it doesn´t dissolve in water is because CH3F is a gas and you have to decrease the pressure blablabla... would CH3F dissolve due to hydrogen bonding with water if it were a liquid at rtp?
  2. Namehere

    Chemistry: Post your doubts here!

    Can anyone explain me if fluoromethane (CH3F) can hydrogen bond with water (H2O)? Here is my thinking... Water can form a hydrogen bond simply because it has a hydrogen attached to an oxygen, but this has to come into contact with a lone pair from a second electronegative atom, in this case F in...
  3. Namehere

    Mathematics: Post your doubts here!

    Is this M1 or M2?
  4. Namehere

    Chemistry: Post your doubts here!

    If what I understand is correct, there is no difference on writing an electron as being added (onto one side of the equation) or subtracted (from the other side of the equation), so any way will be correct in the exam.
  5. Namehere

    Chemistry: Post your doubts here!

    Well, you were talking about reduction potentials.. which I think is A2. Don´t listen too much to me though, I´m a very "mistaky" person...
  6. Namehere

    Chemistry: Post your doubts here!

    The more negative one will undergo oxidation, the more positive one will undergo reduction. So, the -0.15 will get reduced, while the -1.15 will get oxidised.
  7. Namehere

    Chemistry: Post your doubts here!

    Don´t you use filter paper soaked with a bit of acidified potassium dichromate and when SO2 reaches it, it goes from orange to green? Not sure, maybe I´m wrong.
  8. Namehere

    Mathematics: Post your doubts here!

    Sorry, I forgot to put the question, its Q8(ii), and a=5. I dont need any calculations just an explanation of what i wrote: "if you integrate the curve, are u integrating both the positive and negative part of the curve or just the positive one? I just randomly forgot to integrate, so if...
  9. Namehere

    Mathematics: Post your doubts here!

    Please someone!! http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20%289709%29/9709_w12_qp_11.pdf if you integrate the curve, are u integrating both the positive and negative part of the curve or just the positive one? I just randomly forgot to...
  10. Namehere

    Chemistry: Post your doubts here!

    WOW, are you actually a replica of me!!??
  11. Namehere

    Chemistry: Post your doubts here!

    Well, thank you! That´s only cuz I like chemistry though! :P
  12. Namehere

    Chemistry: Post your doubts here!

    Abby, lets show CIE what we are made of! :D
  13. Namehere

    Chemistry: Post your doubts here!

    I can´t believe I´m tagged! :D Just kidding...^^
  14. Namehere

    Mathematics: Post your doubts here!

    Can someone solve this please?
  15. Namehere

    Mathematics: Post your doubts here!

    How to do this question?
  16. Namehere

    Mathematics: Post your doubts here!

    Which board do you think is more difficult?
  17. Namehere

    Chemistry: Post your doubts here!

    Yes, not colourless - just white, and yes!
  18. Namehere

    Mathematics: Post your doubts here!

    Thank you!
  19. Namehere

    Mathematics: Post your doubts here!

    Ok, so whats your way when dealing with vector products?
  20. Namehere

    Mathematics: Post your doubts here!

    Q9(i)
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