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  1. Farez

    Chemistry: Post your doubts here!

    Unless they specifically ask for a particular structure diagram, any correct representation of the structure will be accepted.
  2. Farez

    A LEVEL CHEMISTRY APPLICATION REVISION NOTES

    Use theses chemguide links, has everything you need for A2 level. They also say what topics come more often in the exams, so focus on them. Chemistry of Life Applications of analytical Chemistry Design and materials Read the Application Booklet, and the course book too.
  3. Farez

    P3 Complex numbers challenging question.

    You are not alone. The best thing you could do right now is practice the past papers, and take help from tutors when you face problems.
  4. Farez

    Chemistry P4| A2 only

    There's only 1 tertiary H, and there are 9 primary H's. The probability of the Cl replacing the tertiary H, i.e. probability of J forming, is 21 (because 1 * 21), and the probability of Cl replacing one of the primary H's, i.e. probability of K forming, is 9 (because 9 * 1). Therefore, the...
  5. Farez

    P3 Complex numbers challenging question.

  6. Farez

    Economics 0455 Paper2 variant 2

    I would like to point out that the question was about 'differences in population PROBLEMS', not just 'population'. :)
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