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  1. xxxt

    Physics, Chemistry and Biology: Post your doubts here!

    i think writing the equation first and then writing the number of moles of each compound should ease ur calculation!
  2. xxxt

    Physics, Chemistry and Biology: Post your doubts here!

    an acid is a substance that donates a proton(hydrogen ion) ii, by dissolving them in water ...the one that ionizes completely is a strong acid while the one that ionizes partially is a weak acid
  3. xxxt

    Physics, Chemistry and Biology: Post your doubts here!

    (II) high pressure favors the side with lowest number of moles so increasig pressure will favor the production more ammonia (iii)i think the remaining h2 andn2 are fed back into the proccess to produce more ammonia.....u do not need to take any values just use ur knowladge the table was just...
  4. xxxt

    Physics, Chemistry and Biology: Post your doubts here!

    i am sorry i meant C6H14 NOT C6H4
  5. xxxt

    Physics, Chemistry and Biology: Post your doubts here!

    its ok any way is right but the space given in the paper was only for two products so i thought that should do it.
  6. xxxt

    Physics, Chemistry and Biology: Post your doubts here!

    4b(ii) oxidation is loss of electrons and iodide ions will loss the electrons they took in order to become ions 4b(iii)because ozone makes the iodide to loss their electrons 7a(ii)during crakinga long chain alkane is broken to a long chain alkene and a short chain alkane soo... it will be...
  7. xxxt

    Physics, Chemistry and Biology: Post your doubts here!

    arent u done with physics paper1?!?
  8. xxxt

    Physics, Chemistry and Biology: Post your doubts here!

    it is a proton acceptor because it takes hydrogen ion from sulfuric acid...and a base by definition is the one that accspts protons from proton donators i.e acids.
  9. xxxt

    Physics, Chemistry and Biology: Post your doubts here!

    the formula is T3(Po4)2 because from the graph u can see dat 8 cm3 of phosphate solutions makes max height of precipitate..phosphates valancy is always -3...for that of t u hv to use the mole ratio after writing the equation which should guide you
  10. xxxt

    Physics paper 31 , (a death call)

    yeah it was to da right
  11. xxxt

    Physics paper 31 , (a death call)

    i got da same
  12. xxxt

    Poll:Physics p31

    no we were not supposed to draw it
  13. xxxt

    Physics really needed thinking

    so if u say they became positively charged is it not right??
  14. xxxt

    Physics really needed thinking

    "meaning??"
  15. xxxt

    Physics really needed thinking

    ok
  16. xxxt

    Physics really needed thinking

    hey wat about that question of ossilations???
  17. xxxt

    Physics really needed thinking

    no we both may be right ...any way it was just one mark
  18. xxxt

    Physics really needed thinking

    whatif you say that they become pasitively charged ....because beta particles are -ve
  19. xxxt

    Physics really needed thinking

    hey what was the answer to the question.."state what happens to the air molecules as the beta particles pass???...somthin like that"
  20. xxxt

    Physics really needed thinking

    alright it ok
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