I've found most of the chem ok apart from idiot lecturers who insist on you knowing the exact structure of a whole load of penicillins which just isn't really necessary.
Apart from that, i've liked the chem :-S
BUT maths... i didn't do A level maths, so did a foundation course when i got to uni and was alright at it after that. 3 years on and now needing to know all that horrible stuff again i'm finding myself screwed.
Most of the other maths i've had to do has been tedious calculations which are only hard because they won't let you use a calculator and they use awkward numbers. those ones are more tedious than hard though