Related sites:

• iupac.org

  International Union of Pure and Applied Chemistry

  

• imo-official.org

  International Mathematical Olympiad

  

• solvay.com

  Solvay | Advanced Materials and Specialty Chemicals

  

• silverzone.org

  

• ifcc.org

  The International Federation of Clinical Chemistry and Laboratory Medicine - IFCC

  

• ibchem.com

  IB Chemistry revision notes and syllabus

  

• olympiadhelper.com

  Olympiad Exam Preparation - Practice Papers For Olympiads