You can’t BS your way thru a chemistry class. Or other genuine science classes.
In my early college days I took a course called Descriptive Geometry. It was on of the courses required among others for civil, mining and mechanical engineering students. We were told the first day that the course was a make or break for higher studies. I did very well in that course as well as calculus and chemistry. I moved my engineering to Chemical Eng. As a transfer student to a world renowned university I had to take an all day ‘placement’ exam. I was told that exam would determine if I met the standards to stay in the Chem. Eng. curriculum. Came graduation time I was told I was missing a US civics/government course so I had to take a special 2-4 hour exam which I passed. My G.I. education was marked with tests for competency. I get brochures from my alma mater and it appears to me that education today in the sciences and related subjects are at a higher level than in my days.