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  1. mennakhaled

    chemistry 1c

    the question about the solubility lead,silver,zinc the answers pls? and the answers of calculations problems also why hydrochloric acid not used for acidifying ? urgently needed pls :)
  2. mennakhaled

    4H and 3H :(

    how many marks did you lose?
  3. mennakhaled

    Help guys:)

    hello , iam taking maths,chem,bio edexcel and iam willing to take physics camb not edexcel do you recommend me to? i totally hate edexcel system in all the subjects:/
  4. mennakhaled

    4H and 3H :(

    I am losing like 36 marks in the two exams i really want to kill myself:S do you know anything about the curve and grade boundaries? PLSSSS HELP AND EXPECTATIONS FOR THE CURVE
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