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Search results

  1. geminisign

    Got Top in the Country for Physics!!

    Got Top in the Country for Physics!!
  2. geminisign

    October/November 2013 Results Discussion

    AL stands for A level :)
  3. geminisign

    Chemistry MCQ thread...

    Oh I missed that. Cheers for the help really appreciate it!
  4. geminisign

    Chemistry MCQ thread...

    Hi :) Would like some help for this question please. The answer says only 2 and 3 are correct. I do not understand why 1 is incorrect. Which reagents, when used in an excess, can be used to make sodium lactate, CH3CH(OH)CO2Na, from lactic acid, CH3CH(OH)CO2H? 1 Na 2 NaHCO3 3 NaOH Thanks!
  5. geminisign

    Mathematics: Post your doubts here!

    Hi there :) May I please get help with question 7b? http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20(9709)/9709_s11_qp_32.pdf...
  6. geminisign

    Physics: Post your doubts here!

    For practical paper number 3 (AS Level) when they ask you "Explain whether your results support the suggested relationship." The answer is "Valid conclusion based on the calculated values of k. Candidate must testagainst a stated criterion. " What is a stated criterion? Can I have a few...
  7. geminisign

    chemistry doubt please help

    Are you referring to double covalent bonds? This may explain it for you: http://www.meritnation.com/discuss/question/3185924
  8. geminisign

    Physics P3.. how was it?

    I did 33. It went well, very short paper for me only 11/12 pages long. Good luck everyone with results :)
  9. geminisign

    Physics, Chemistry and Biology: Post your doubts here!

    Could someone please help with this chemistry question? First variant paper, question 9ci. http://www.xtremepapers.com/papers/CIE/Cambridge IGCSE/Chemistry (0620)/0620_s09_qp_3.pdf This is the answer: silicon is limiting reagent 0.07 moles of Si and 25/160 = 0.156 moles of Br2 because 0.14...
  10. geminisign

    Any Type of Doubts in ENg Phy Chem Bio or Math....Ask me here!!!

    Wonderful thanks. Now moving on to chemistry, I hope you don't mind me asking you all these questions but you are very helpful. First variant paper, question 9ci. http://www.xtremepapers.com/papers/CIE/Cambridge%20IGCSE/Chemistry%20(0620)/0620_s09_qp_3.pdf This is the answer: silicon is...
  11. geminisign

    CIE 2012 Oct/Nov discussion!!!

    Well in the first 20 seconds, 48 centimeters cubed of oxygen was given off. Rate=volume given off, divided by time. Which is 48 divided by 20. this equals 2.4 centimeters cubed per second
  12. geminisign

    Cheers for following

    Cheers for following
  13. geminisign

    Any Type of Doubts in ENg Phy Chem Bio or Math....Ask me here!!!

    Thanks for always being a great help. Can you explain this please? Why is there an opposing emf? Question 8c. http://www.xtremepapers.com/papers/CIE/Cambridge%20IGCSE/Physics%20(0625)/0625_w11_qp_33.pdf Mark scheme...
  14. geminisign

    Statistics P6 : post your doubts here!

    This question is like making two equations and simultaneously solving them. The best I can do is show clearer working out, than what is provided on the mark scheme. Hope it helps.
  15. geminisign

    Statistics P6 : post your doubts here!

    Hi could anyone help with this? Question 6iv and 6v http://www.xtremepapers.com/papers/CIE/Cambridge%20International%20A%20and%20AS%20Level/Mathematics%20(9709)/9709_w10_qp_61.pdf
  16. geminisign

    Any Type of Doubts in ENg Phy Chem Bio or Math....Ask me here!!!

    No I don't so, not sure what that is aha... I've got another question http://www.xtremepapers.com/papers/CIE/Cambridge%20IGCSE/Physics%20(0625)/0625_s09_qp_3.pdf Question 11b, What is the direction of the electric field in order to cancel out the deflection of the alpha-particles? Can you...
  17. geminisign

    Any Type of Doubts in ENg Phy Chem Bio or Math....Ask me here!!!

    Thank you
  18. geminisign

    Any Type of Doubts in ENg Phy Chem Bio or Math....Ask me here!!!

    Cheers, could it be that A is South Pole and B is North Pole? Sorry to bother you with this 1 mark question!
  19. geminisign

    Any Type of Doubts in ENg Phy Chem Bio or Math....Ask me here!!!

    Thanks heaps! Just one question, how did you know that B is a South Pole and why is it like that? Your handwriting is fine :)
  20. geminisign

    Any Type of Doubts in ENg Phy Chem Bio or Math....Ask me here!!!

    I don't know why I can't understand this one mark question: State the direction of the movement of the flexible wire. http://www.xtremepapers.com/papers/CIE/Cambridge%20IGCSE/Physics%20(0625)/0625_s08_qp_3.pdf Question 9cii Could you help?
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