On the one hand, mathematics (including calculus and simple differential equations) has helped me as a practicing biochemist. The take-home message is that you never know what intellectual tools you will need when doing research. On the other hand, I would be careful about what inferences one should draw from performance in one high school course. In other words, you may do better in a different course.

I don't think that your chances for being accepted into college will be strongly affected (although I am far from sure), but undergraduate degrees in chemistry often require some calculus and some require differential equations or linear algebra. Therefore, you may have to deal with calculus sooner or later.