Chances of an international senior for chemistry major at *private* colleges

Yes, I referred to biochemistry / molecular biology by its foundational elements. Good job in understanding that.

Regarding LACs, I find they work best for students who express — or develop — a decisive preference for them. For these students, they can make great first-choice schools for, especially, characteristics such as their focus on undergraduates, research opportunities and intimate overall scale.

Note that LACs such as Harvey Mudd, Pomona, Haverford, Amherst, Hamilton, Williams, Bowdoin, Reed and Carleton appear in a Princeton Review sampling, “Great Schools for Mathematics Majors” (along with universities such as MIT, Caltech and Harvard).

Highly qualified international applicants would, in general, have an admissions advantage at LACs in comparison to academically comparable universities, in my opinion.