The answer is always "maybe". How much math, physics, and chemistry did you take in your undergrad years? There are three hurdles to getting into grad school. First you have to get past the grad school admissions criteria which are usually straight up grade point, GRE score, and correct prerequisite classes. Second, you need to get past the department criteria which are usually grade point, GRE, and undergrad class mix. Third, at least one prof in the department has to express sufficient interest in having you as a student to almost, but not quite, commit to hiring you as a TA or RA.