1. The papers section has been updated with the latest CIE May/June 2015 resources for most of the subjects.

    Click here for more information or to discuss
    Dismiss Notice

Chemistry ATP (Important points for Both IGCSE and O-level)

Discussion in 'Cambridge O Levels' started by Nibz, May 24, 2011.

  1. Sijal Mirza

    Sijal Mirza

    Messages:
    48
    Likes Received:
    34
    Trophy Points:
    18
    Gender:
    Female
    I'm glad that it helped :) Just pray for me please, i have my atp paper tomorrow :)
     
    bubbles1997 likes this.
  2. XPC Bot

    Sponsored Listings
  3. Hum199

    Hum199

    Messages:
    322
    Likes Received:
    171
    Trophy Points:
    53
    Gender:
    Male
    Location:
    the world that is behind ur imagination....!
    Can anyone describe Fermentation?
     
  4. irfan.kheerdali

    irfan.kheerdali

    Messages:
    50
    Likes Received:
    2
    Trophy Points:
    18
    how to learn electrolysis by heart ?????? plzzzzzz helppp
     
  5. Muhammmed Emad

    Muhammmed Emad

    Messages:
    7
    Likes Received:
    0
    Trophy Points:
    11
    Gender:
    Female
    i want to ask about the question that came yesterday in 0620/11 chemistry
    which compounds gives the three elements nitrogen pottasium and phosphorous ?
    i think it was kno3 and NH3PO4?
    please i want an answer?
    thanks
     
  6. rameeshapak

    rameeshapak

    Messages:
    27
    Likes Received:
    7
    Trophy Points:
    13
    Gender:
    Female
    Why is this pinned, the atp is over :eek:
     
  7. vishalgodhani

    vishalgodhani

    Messages:
    167
    Likes Received:
    203
    Trophy Points:
    43
    Gender:
    Male
    Location:
    bhavnagar,india
     
  8. Muhammmed Emad

    Muhammmed Emad

    Messages:
    7
    Likes Received:
    0
    Trophy Points:
    11
    Gender:
    Female
    please i want to ask a question
    all of you take chemistry ana all of its marks is 160 or 18o bio and chemistry
    but when you open xtreme papers to see the expectations to get the star ana A and B its overall marks is from 200 caz he added paper 5
    so can any one tell me how can i know the expectation to get star but from 160
    i tried to make ratio
    so can any one tell me how can know that expectations ?
     
  9. finnan

    finnan

    Messages:
    6
    Likes Received:
    8
    Trophy Points:
    3
    Gender:
    Male
    indicators acid base
    litmus = red blue
    phenopthalien = colourless pink
    methyl orange = red / pink yellow
     
    FLRNAB likes this.
  10. shariq17

    shariq17

    Messages:
    1
    Likes Received:
    0
    Trophy Points:
    11
    Gender:
    Male
    Well its Nitrogen Dioxide..which is a poisonous gas. It reacts to form ozone which causes irritation and can damage lungs..right???
     
  11. sharjeelmumtaz

    sharjeelmumtaz

    Messages:
    79
    Likes Received:
    122
    Trophy Points:
    43
    Gender:
    Male
    You got it all mixed up
    Yes, nitrogen is harmless but nitrogen dioxide is a poisonous brown gas with a pungent smell.
    Ozone is a gas that is formed by photochemical reactions. It reacts with oxides of nitrogen to form photochemical smog which causes respiratory problems/irratation.
     
  12. SOLDIEROFALLAH

    SOLDIEROFALLAH

    Messages:
    1
    Likes Received:
    0
    Trophy Points:
    1
    Gender:
    Female
    THANKS JAZAKALLAH KHAIR SO MUCH I HAV IGCSE EXAMS THIS WEEK AND THE NEXT. MAY ALLAH GRANT YOU A PLACE IN JANNAH TUL FIRDOUS. BARAKALLAH FEEK. XD
     
  13. teachyourself

    teachyourself

    Messages:
    467
    Likes Received:
    233
    Trophy Points:
    53
  14. A* Student

    A* Student

    Messages:
    2
    Likes Received:
    0
    Trophy Points:
    11
    Gender:
    Male
    What if I am bald
     
  15. A* Student

    A* Student

    Messages:
    2
    Likes Received:
    0
    Trophy Points:
    11
    Gender:
    Male
    Can swimming goggles work?
     

Share This Page