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  1. D

    Chemistry Paper 1 Doubts!

    delta H is positive because delta H means final energy-initial energy and here the result of final-initial energy is positive. so, delta H must be positive............
  2. D

    Chemistry practical paper 34 - tips needed

    I think for tomorrow it will be titration, enthalpy change and ion test.......bt i think question was quite easy than asked previos year........ 8) 8) 8)
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