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  1. M

    Helpful new site =)

    Hey guys, this site also has some pretty good stuff apparently from tuition teachers such as Imran Merchant, Naushad etc, Hope it helped :) http://gcsesuccess.blogspot.com/
  2. M

    Absolute uncertainties in physics paper 5

    I can never figure out the absolute uncertainities, can anyone please explain to me how to find absolute uncertainities using some examples or questions you have come across while doing past papers? I will pray that your exam goes amazing :p meri dua Sach hoti hai no joke :p
  3. M

    biology paper 5 29TH MAY !!!

    For t test it's number of samples -2 and for chi it's number of classes -1
  4. M

    biology paper 5 29TH MAY !!!

    I still don't get it, what's my result and how do I tell if its greater or not? :p
  5. M

    HELP! PHYSICS Paper 5 (A-level practical)

    Haha guys thanks but the h was actually in the power and g was being divided by t^h, well I get the question now, can some one please open up w 11 and solve part d (i)? Marking scheme says k= 10^2 * y intercept but shouldn't it just be 10^y? Where did the 2 come from? :/ please help guyssss
  6. M

    HELP! PHYSICS Paper 5 (A-level practical)

    Also, how do we find the error in the value of y intercept of the line of best fit?
  7. M

    HELP! PHYSICS Paper 5 (A-level practical)

    Hey guys, can anyone teach me how to find out gradients and y intercepts from given equations, for e.g if the equation given to us was R=T^h/g then how do you determine gradient and y intercept on terms of g and h? The question also mentioned something about plotting lg r on y axis and lg t on x...
  8. M

    biology paper 5 29TH MAY !!!

    Hey, Can someone please explain to me this question on t tests? question number 1 b iii ? How do you interpret the readings in the table for the t test? http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Biology%20(9700)/9700_w10_qp_52.pdf
  9. M

    Biology paper 5 important question

    Hey, Can someone please explain to me this question on t tests? question number 1 b iii ? How do you interpret the readings in the table for the t test? http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Biology%20(9700)/9700_w10_qp_52.pdf
  10. M

    Chemistry P4| A2 only

    DragonCub See my post above then read this, okay so I tried to explain this to myself and came up with this :P if we take thee zn and mg reaction then mg having a more negative value of electrode potential will undergo oxidation and vice versa for Zn, does this mean that zinc occurs at the...
  11. M

    Chemistry P4| A2 only

    But isn't the oxidation and reduction rule reversed for electrochemical cells? i.e oxidation at CATHODE and reduction at ANODE? this is so confusing :/so you're basically saying that I've got all my facts wrong? and the more negative reduction potential value occurs at the anode? please explain...
  12. M

    Chemistry P4| A2 only

    guys, can you confirm whether I've got my facts right? okay so in the electrochemical cell, the electrode at the left hand side is essentially a cathode and the equation which involves a more negative electrode potential value goes here but instead of reduction oxidation takes place here and...
  13. M

    Chemistry P4| A2 only

    smzimran actually it's fine.. scrolled back, someone had asked the same question, good luck for your paper :)
  14. M

    Chemistry P4| A2 only

    smzimran thank you brother, can you explain to me the logic behind question number 5 part iii? marking scheme says that many people got it wrong so it might also help out others...
  15. M

    Chemistry P4| A2 only

    Lion Power because in phenol the lone pair of oxygen is delocalised over the ring system thus the charge magnitude is diminished, lesser charge magnitude on the oxygen atom means more stable anion formed and this increased stability of anion is attributed to the high acidity of phenol whereas...
  16. M

    Chemistry P4| A2 only

    http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20%289701%29/9701_s10_qp_41.pdf in question number 5, does the more negative electrode potential always occurs the cathode? that is before we switch it's sign around? like for e.g in the question...
  17. M

    Chemistry P4| A2 only

    guys, will ch3cooh give a positive iodoform test ? cause well we still have ch3 and C double bond O.. so shouldn't it? :/
  18. M

    Chemistry P4| A2 only

    smzimran bro, the ph= pka + log(salt/acid) is this like a proper formula? Also, do we take the MOLES of salt and the acid or the CONCENTRATION?
  19. M

    Chemistry P4| A2 only

    actually I figured it out myself hehe thanks anyways :)
  20. M

    Chemistry P4| A2 only

    also what values do you look at? please help :( I'm soo failing this exam :cry: i don't know anything and smz imran thanks for solving my question broo :)
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