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  1. cashew

    Chemistry: Post your doubts here!

    11 In some fireworks there is a reaction between powdered aluminium and powdered barium nitrate in which heat is evolved and an unreactive gas is produced. What is the equation for this reaction? A 2Al + Ba(NO3)2 → Al2O3 + BaO + 2NO B 4Al + 4Ba(NO3)2 → 2Al2O3 + 4Ba(NO2)2 + O2 C 10Al +...
  2. cashew

    Chemistry: Post your doubts here!

    Woah, thanks a lot bro :)
  3. cashew

    Chemistry: Post your doubts here!

    B and then i cut it and chose D :/
  4. cashew

    Chemistry: Post your doubts here!

    why C? ._.
  5. cashew

    Chemistry: Post your doubts here!

    hey metonia, I am done with q6 but i was still wondering for question 5, why can't option B and D be the answers? thanks in advance
  6. cashew

    cie.__________.

    cie.__________.
    • cashew
    • Profile post
  7. cashew

    Chemistry: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20(9701)/9701_s09_qp_1.pdf mcq 5 and 6. I am stuck, can someone explain me the answers?
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