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Recent content by mygjjk

  1. M

    Chemistry: Post your doubts here!

    sorry if this is a dumb question but what do u mean by B.P?
  2. M

    Chemistry: Post your doubts here!

    First u have to combine the half equations that form FeC2O4. So, Fe2+ + C2O4 2- > Fe3+ + 2CO2 + 3e- Now balance this equation with the MnO4- equation. ur going to have to find a number to multiply with so that the number of electrons are the same so u can cancel them out. 5 x (Fe2+ + C2O4 2- >...
  3. M

    Chemistry: Post your doubts here!

    ans is D because they are asking for standard enthalpy change of reaction. the definition of s.e.c of reaction is "the enthalpy change when the amount of reactants shown in the equation react to give products under standard conditions" since there are 6 F's and 6 H's in the reactants, therefore...
  4. M

    About Error Carry Forwards(ECF) in AS physics practicle exam

    hi can i ask how did you find out your marks ?
  5. M

    About Error Carry Forwards(ECF) in AS physics practicle exam

    i'm pretty sure there is ecf, so even if your values are incorrect, as long as you use them properly in the calculations i think you'll be fine. there is only 2 marks i believe for accuracy (meaning, how similar your results are with the supervisor, and if your results are realistic, etc). idk...
  6. M

    Chemistry: Post your doubts here!

    Hello, I need help for question 4 d iii) from Oct/Nov 2018 paper 21... Suggest a structure for Y... Here is what the mark scheme says: Can someone tell me how you get this answer? Why is it an ester group, and also why is it cyclic?
  7. M

    Physics: Post your doubts here!

    hmm not sure for Q1, but maybe Q2 is about ramps then and rolling the ball?
  8. M

    Physics: Post your doubts here!

    me
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