I am a physicist and studying materials engineering at the moment which is a mixture of physics, chemistry and industrial engineering.
From my point of view you do not need to know too much 'theoretical' physics such as theory of relativity , quantum mechanics, electrodinamics, stadistical physics, rational mechanics and so on which I can assure you are the most abstract things you can study in a degree and most people are f*** up about,so you will have to study just solid state chemistry as the most abstract topic and maybe some algebra, calculus and differential equations in the first courses (I dont know the US education system actually) as well as organic and inorganic chemistry (really boring in my opinion lol) and some physicochemistry where most of chemist and chemical engineering get stuck but you wont go thoroughly, trust me. so you wont have to know so much about Einstein, Dirac, De broglie, Yukawa and friends to get your degree :)
Remember engineering is not a science, it is just an application of it.
just try it, BE TENACIOUS and the best of lucks.
hope this is helpful to you.