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  1. K

    Biology; Chemistry; Physics: Post your doubts here!

    But isnt aluminum also lower that Mg?
  2. K

    Biology; Chemistry; Physics: Post your doubts here!

    Thanks a lot :)
  3. K

    Biology; Chemistry; Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20O%20Level/Chemistry%20(5070)/5070_s12_qp_42.pdf http://papers.xtremepapers.com/CIE/Cambridge%20International%20O%20Level/Chemistry%20(5070)/5070_w08_qp_4.pdf Please help with Q4 of both papers
  4. K

    Biology; Chemistry; Physics: Post your doubts here!

    Yes
  5. K

    Biology; Chemistry; Physics: Post your doubts here!

    It's also used to oxidize alcohols to produce Carboxylic acids
  6. K

    Biology; Chemistry; Physics: Post your doubts here!

    Okay thanks :) So if the water level had raised, what would that have indicated?
  7. K

    Biology; Chemistry; Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20O%20Level/Chemistry%20(5070)/5070_w12_qp_41.pdf Please explain whats happeing in Q8 :/
  8. K

    Biology; Chemistry; Physics: Post your doubts here!

    Oh sorry :/
  9. K

    Biology; Chemistry; Physics: Post your doubts here!

    Yeah
  10. K

    Biology; Chemistry; Physics: Post your doubts here!

    Exp: to find out whether CO2 is given off during fermentation Testube with a rubber bung on top containing distiller water is connected to a testtube containg lime water by a delivery tube. 1.Add few grains of dry yeast in destilled water in a boiling tube. 2.After 20 mins add an equal anoint...
  11. K

    Biology; Chemistry; Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20O%20Level/Biology%20(5090)/5090_w09_qp_6.pdf Help needed, Q3 (b)
  12. K

    Biology; Chemistry; Physics: Post your doubts here!

    In ATPs if the points plotted on the graph are in the form of an uneven curve, we can simply join them with a rule right?
  13. K

    Biology; Chemistry; Physics: Post your doubts here!

    thank you so much!
  14. K

    Biology; Chemistry; Physics: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20O%20Level/Biology%20(5090)/5090_s10_qp_62.pdf Please help with Q1 part (d)
  15. K

    Biology; Chemistry; Physics: Post your doubts here!

    You're welcome :)
  16. K

    Biology; Chemistry; Physics: Post your doubts here!

    For x axis you can take 1cm to represent 2 units And for y axis, squeeze the graph and start from 95 and take the scale 1cm to represent 5 units
  17. K

    Biology; Chemistry; Physics: Post your doubts here!

    Do we need to know vegetative and artificial propagation? For growing plants asexually?
  18. K

    Biology; Chemistry; Physics: Post your doubts here!

    In a graph? No you can squeeze the axis and start from a larger number as well.
  19. K

    Biology; Chemistry; Physics: Post your doubts here!

    If the specimen already has a magnification of x0.75 And we're asked to draw and find the magnification of our drawing and the length of the specimen is 3.5 cm and the length of my drawing in 7.8cm then will I find the magnification like this? 78/35 into 0.75
  20. K

    Biology; Chemistry; Physics: Post your doubts here!

    Thank you so much :)
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