I had my half yearly's for chem today and if it helps...
we were being tested on acid-base titration, properties of acids/bases, esters, polymers and monomers and radioisotopes used in medicine/industry - those were the main questions. It was quite basic and straight from the syllabus so you could try just making notes on the dot points - it helped me heaps!
Oh and some oxidation/reduction reactions and galvanic cells.