Chemistry paper 3 in two days and just started studying.. 
Check the resources I posted in Resources section in IGCSE. I posted some stuff there. Also check subject doubts section, chemistry threads. =]
I did Chemistry last year and believe me you will just get an A/A* because the curve is super low.lol. I mean last year the exam wasn't easy and everyone complained about hoe HARD the exam was and we all ended it up getting A's and A*'s!!!
It is a very easy subject, all IGCSE is easy. You score good grades. So chill. You still have time. 2 days actually are more than enough for revision.
