Chem or Bio should really only need statistics and at most Calc 2. YMMV! Its all up to your university.
http://mathworld.wolfram.com/ (excellent reliable site, trustable content)
I had quite a bit of college math, I was in an engineering major that focused on theory and derivation:
-calc i differential, integrals
-calc ii more fun with integrals
-calc iii multivariable
-linear algebra
-differential equations
-partial differential equations (really out there)
-tensor, vector, field algebra and calculus
-Finite Element Analysis, which is really a linear algebra and programming class combined
-Intermediate Fluid Mechanics, alot of field calc, tensors, partial diffy q's, laplace tranforms, etc combined with programming and physically impossible to solve systems with current human understanding of math; plus a little chaos thoery thrown in for the fun of it.
I find that a thorough discussion of concept with someone knowledgable or with a group discussion of classmates helps to ease the math pains. Particularly the way that higher level calc and diffy q combines complex geometry with the algebra of calc.
I also found that it was very interesting to learn the concepts of how the math interacts but performing the practise problems and exercises was tedious and boring. But "No pain, No gain". Tedious but they do provide insight.
Many times, calculus and above can be explained several different ways with different points of view. So listen very carefully to different sources about how they explain. For example: The teacher, the textbook, and
http://mathworld.wolfram.com/ (excellent reliable site) will all explain it differently. It all depends on you which explanation will "click" in your head. And the source that works can change from day to day and hour to hour, so review several times a week or day to really get it.
Drew