<p>It is rather unlikely that chemistry specifically will be required for breadth requirements (unless she goes to MIT, a military service academy, or some place like that), as opposed to a choice of science courses (not even necessarily “hard” ones that require a high school course in the same science as a prerequisite). But if that is a concern, check the actual requirements of the colleges under consideration.</p>
<p>On the other hand, a business major (under which marketing typically falls) is likely to find a requirement to take calculus and statistics (though it may be a “calculus for business majors” course instead of “calculus for math, physics, and engineering majors” course for calculus). Again, check the actual requirements of the colleges under consideration.</p>