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  1. F

    Biology; Chemistry; Physics: Post your doubts here!

    1
  2. F

    Biology; Chemistry; Physics: Post your doubts here!

    You had to intersect or you wouldn't get the max temp. You intersect them and they intersected around 9.8-10.
  3. F

    Biology; Chemistry; Physics: Post your doubts here!

    AGBR? I think if it was the second question 1st mass was 3 something and and 2nd mass was 5 something i think.
  4. F

    Biology; Chemistry; Physics: Post your doubts here!

    The answer for concentration is 0.393 in marking scheme. They might accept 0.40. Dont know :p I drew, waterbath, bung, thermometer, condenser, water in and out and two distillate flasks. :p
  5. F

    Biology; Chemistry; Physics: Post your doubts here!

    Nopes. Maximum temperature was halved but the volumes remain same.
  6. F

    Biology; Chemistry; Physics: Post your doubts here!

    http://studyguide.pk/Past%20Papers/CIE/Cambridge%20O%20Levels/5070%20-%20Chemistry/5070_w07_qp_4.pdf Titration is almost same. Last question is ditto identical. And the reducing agent/oxidising agent :D
  7. F

    Biology; Chemistry; Physics: Post your doubts here!

    Paper went very well Alhamdulillah. :D
  8. F

    Biology; Chemistry; Physics: Post your doubts here!

    Found these off the internet. Iron III are Reddish Brown. It's just written brown here.
  9. F

    Biology; Chemistry; Physics: Post your doubts here!

    Yes you can.
  10. F

    Biology; Chemistry; Physics: Post your doubts here!

    I did. Okay books, cringy movie.
  11. F

    Biology; Chemistry; Physics: Post your doubts here!

    It will be 64%. As air contains 20% oxygen, this 20% reacts with iron. 20/ 100 x 80 = 16cm3 16cm3 of O2 reacts. Remainder =80-16 = 64
  12. F

    Biology; Chemistry; Physics: Post your doubts here!

    Mass of G is 132. Sum of all elements in G needs to be 132. Subtract the known elements with coefficients from 142, that is 90. 132 - 90 = 42 CxHy = 42 Hit and trial 12(3)+6(1) = 42. Thus x = 3 and y =6
  13. F

    Biology; Chemistry; Physics: Post your doubts here!

    No. That was the stalk.
  14. F

    Biology; Chemistry; Physics: Post your doubts here!

    Below.
  15. F

    Bio ATP 2014

    The colour of cytoplasm is not green. It looks green due to presence of chlorophyll in chloroplasts.
  16. F

    HI FREINDS HOW WAS THE PHYSICS ATP GCSE O LAVEL?

    Nopes. you can do it in any. I did them in mm since ive heard that we should write light ray experiment values in mm but doesnt matter at all.
  17. F

    HI FREINDS HOW WAS THE PHYSICS ATP GCSE O LAVEL?

    Lets just pray that the examiners read it with a open mind. :P
  18. F

    HI FREINDS HOW WAS THE PHYSICS ATP GCSE O LAVEL?

    Doesnt seem correct aswell? If we could just take out the rod, then what's the problem? I think CIE has more to it than that ;) But hey that's just me.
  19. F

    HI FREINDS HOW WAS THE PHYSICS ATP GCSE O LAVEL?

    Dont think calibrated one is right. You just cant change the whole apparatus like that. It has been told in Examiner Reports to not do that.
  20. F

    Biology; Chemistry; Physics: Post your doubts here!

    Do it but then it'll have to be really solid. :3 Why not just go for the narratives?
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