• We need your support!

    We are currently struggling to cover the operational costs of Xtremepapers, as a result we might have to shut this website down. Please donate if we have helped you and help make a difference in other students' lives!
    Click here to Donate Now (View Announcement)

Search results

  1. KyleoAhsan

    Mathematics: Post your doubts here!

    4 (i) 12 ( -2 ) ³ + 25 ( -2 ) ² -4 ( -2 ) - 12 = 0 -96 + 100 + 8 - 12 = 0 108 - 108 = 0 Thus we have shown that f(-2) = 0 Second part I have no idea how to solve ^_^! But the closest answer I got is -0.368!
  2. KyleoAhsan

    Biology; Chemistry; Physics: Post your doubts here!

    Concentration of Glucose, dissolved mineral ions and salts will be same in dialysis fluid and blood, This is because if a concentration gradient is built, the dissolved ions, glucose and salts will diffuse out and useful substances will be filtered out of the blood! The whole use of dialysis is...
  3. KyleoAhsan

    Physics, Chemistry and Biology: Post your doubts here!

    Well there are different types of bonding, For metallic elements its metallic bonding, which is due to the attraction forces between the positive nuclei and the free delocalised electrons...now you may already know that in metals the outer electrons are not in the last energy level/outer shell...
  4. KyleoAhsan

    Physics, Chemistry and Biology: Post your doubts here!

    http://www.xtremepapers.com/community/threads/useful-stuff-compiled.10273/ Thanks to Sweetpie, a wonderful collection of notes are in the link above :D! All Credits to her :)!
  5. KyleoAhsan

    Biology; Chemistry; Physics: Post your doubts here!

    Well Onion Cells don't have Chloroplasts because they grow underground! so they don't photosynthesize! Plant Cells have Chloroplasts to absorb sunlight...onion cells are found in tubers! That's pretty much all I know I guess one difference O.o!
  6. KyleoAhsan

    Physics, Chemistry and Biology: Post your doubts here!

    I can help you in chemistry and physics ^_^! If you need help let me know ;)!
  7. KyleoAhsan

    Maths, Addmaths and Statistics: Post your doubts here!

    6x-2y+1=0 -2y+6x = 0-1 -2y=-6x -1 y=-6x/-2 -1/-2 y= 3x + 1/2
  8. KyleoAhsan

    Maths IGCSE May/June 2012 Papers 22 and 42 marked

    I have to say, Variant 2 is easy, people can score about 110+ in paper 4 and 60+ in paper 2 so getting A* wouldn't be too difficult ! :)! paper was easier compared to 2007 papers!
  9. KyleoAhsan

    Biology; Chemistry; Physics: Post your doubts here!

    A balanced equation depends on few things, like how the metal is bonded, its valency, Ensure that the number of atoms in the left side of the equation and at the right side of the equation are same. Example :- C6H14 + O2 ===> CO2 + H2O Above we have on the left side of equation [ 6 - carbon...
  10. KyleoAhsan

    Biology; Chemistry; Physics: Post your doubts here!

    Wrong ! magnesium + oxygen will give a white powder of magnesium oxide ! 2Mg + O2 ---> 2MgO not 2LiO
  11. KyleoAhsan

    Inequality question from year 2003, past paper 1

    Not Sure If This Is Correct! But Here I Go! :) First solve the Simultaneous equation! And you get : x=3 and y=-1 So now we have some values to find gradient [m] we need to get the equation in the form y=mx+c x-3y=6 = 3y=x-6 y=x-2 so y=mx-2 Substitute the values we got from the...
  12. KyleoAhsan

    IGCSE Chemistry notes

    http://www.xtremepapers.com/community/threads/all-notes-o-level-0r-igcse-a-level.4866/
  13. KyleoAhsan

    Biology; Chemistry; Physics: Post your doubts here!

    Just by telling Electricity we wouldn't know because its too broad..are you actually having problems with the whole main topic? or do you have specific areas?! and Chemistry moles what do you not know about it?
  14. KyleoAhsan

    May/June 2012 Papers!!!

    Oww Nice ! I want to know the answers too post them please :D
  15. KyleoAhsan

    May/June 2012 Papers!!!

    a) 1.02g => 0.0279 moles b) 4g => 0.01395 moles c) 0.6975 g/dm3 d) 286.73 e) 10 Do you have the answers? These are what I got so far..hope its correct xD!
  16. KyleoAhsan

    May/June 2012 Papers!!!

    Oh God! :P I thought it was an O level Question....and it Blew my head...! No wonder it is so tough!
  17. KyleoAhsan

    Biology; Chemistry; Physics: Post your doubts here!

    Oh is there a discussion thread? well since I couldn't find any marking schemes ofcourse they are not out even...I just found it a bit tough ! :D! so wanted to see all the other geniuses answers...to get reasonable answers :D
  18. KyleoAhsan

    Biology; Chemistry; Physics: Post your doubts here!

    Hey Guys Lets discuss the 2012 papers? ! Its quite tough!
  19. KyleoAhsan

    Biology; Chemistry; Physics: Post your doubts here!

    To be honest...it will be hard if you are unprepared..or if the exam contains the questions from a topic you find difficulty in...so my advice is Be very thorough...go through every topic...and master them one by one...it is sometimes useful in physics to study a little bit of advanced...
  20. KyleoAhsan

    Biology; Chemistry; Physics: Post your doubts here!

    Oh Great! I thought my explanation example was stupid..because I made it up :P! It don't make sense to me even haha! Sorry for misunderstanding ;o!
Top