• 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. haochen

    Chemistry doubts..ask here!

    nooooooo u got it wrong u said in 4 add HCL from the burette while in the burette it is NaOH :D and dont use phenolphthalein because it is colouless in neutral and acid so use methyl orange :D
  2. haochen

    Biology P31 <-----

    it break down glucose in to smaller molecule so it can pass through the tube.
  3. haochen

    Chemistry doubts..ask here!

    they already post it :D fast source :D
  4. haochen

    Chemistry doubts..ask here!

    nooooo it is less steep and it doesnt join the line there is two factor which doesnt join the line and one of them is concentration :) go check again to make sure :D
  5. haochen

    Chemistry doubts..ask here!

    u place the NaOH in the burette it should be in the flask and the HCL should be in th burette correct ur 1, 2 , 4 line :D
  6. haochen

    Chemistry doubts..ask here!

    ur welcm :D
  7. haochen

    Chemistry doubts..ask here!

    ohhh i dont play it anymore (boooring :) ) from where r u ???
  8. haochen

    Chemistry doubts..ask here!

    it is when u react a base with and acid to form salt and water. do u need the steps ?????
  9. haochen

    Want bio p31 answers ? (ask here)

    i wrote liver which is wrong and small intestine not such of the correct answer :D
  10. haochen

    Chemistry doubts..ask here!

    use potassium manganate it will turn from purple to colorless use potassium dichromate it will change from orange to green use: it is use by the police to test if the driver have drank alcohol when driving. hope u got it :D
  11. haochen

    Chemistry doubts..ask here!

    it is general chmistry first u use a mortar and pestle and crush it , to increase surface area. then u add an acid eg. HCl and the dissolve it and now copper carbonate react with hydrochloric acid to form copper chloride and CO2 and Water then copper chloride (think think think) u can use...
  12. haochen

    Chemistry doubts..ask here!

    ur welcm :D
  13. haochen

    Physics-Doubts Regarding energy sources

    so (continuation of xIshtar) p.e. is stores in the rain and condense in the dam so the water have p.e. and when it is let loose a little , it rush down the hill and hit the turbine causing the turbine to move which produces electric energy :D hope it helped :D
  14. haochen

    Want bio p31 answers ? (ask here)

    i wrote the same as xIshtar but for protein i dont know it so i wrote anything :( and about the insect i wrote the same :D
  15. haochen

    Chemistry doubts..ask here!

    yeah because less concentration so less molecule so less product :D hope u got it :)
  16. haochen

    Chemistry doubts..ask here!

    :) btw where do u live narutogirl ??? when u posted ur e mail i checked in facebook and u are already my friend (dunno when i added u :D ) and ur in jeddah ????!!!!
  17. haochen

    last question in pp6 chemistry

    ur welcm :)
  18. haochen

    OLD chemistry paper 3 from 1993-2000

    i think most question came from 1990's but i already hv them so thx :D dont know about other :D
  19. haochen

    Want bio p31 answers ? (ask here)

    no its correct :D
  20. haochen

    Biology P31 <-----

    :)
Top