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  1. A

    Chemistry: Post your doubts here!

    Thank you for your help
  2. A

    Chemistry and Physics AS paper 12 MCQS

    Could you please. Explain the last part of your explanation starting from (2x+3)
  3. A

    Chemistry: Post your doubts here!

    Sodium sulphite lost 2 electron it's oxidised and the metallic salt lost 3 electrons. Could you explain in equations please breakingbad
  4. A

    Chemistry and Physics AS paper 12 MCQS

    I can't understand the last part could you please explain
  5. A

    Chemistry: Post your doubts here!

    I understood the mol I understood the mole ratio part but how is it initially 3 electrons and then you simply say give it one more electron to be a +2
  6. A

    Chemistry: Post your doubts here!

    http://papers.xtremepapers.com/CIE/Cambridge%20International%20A%20and%20AS%20Level/Chemistry%20(9701)/9701_w07_qp_1.pdf. Question 9 please
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