chem

  1. S

    Organic Chem: Substitution Reaction

    Is there any rule about which hydrogen in alkane will be replaced by a halogen atom during substitution reaction as per below? Thank you in advanced!!!!!
  2. D

    Chemistry

    Hey guys!! So I've just started my HSC course for 2020, and I'm the only one doing Chemistry in my cohort. So I've been placed in a distance education school. Is there anybody who could share chemistry HSC notes for the new syllabus for free? I'm asking for too much already but oh well :)
  3. A

    Chemistry or Economics

    Hey everyone, Is it easier to get a better ATAR is economics or chemistry?
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