If you placed into college algebra you’re okay. If you placed below it there’s a problem. You’ll need College algebra, Calculus 1, and Biostatistics. Your chem major will likely require more than that.
I don’t think you realize what you’re up against though. You need to review math and chem over the summer, aiming for 100% - you’ll need to be top 10% in your classes and getting complacent about a C in high school is bad news. Even kids who never allowed themselves to get to a B struggle.
Add to this the fact chem is going to be deliberately weedout - it means the tests are designed to fail a certain percentage of the class and, often, at the end of the first semester, half the students have been weeded out already; think of it as a test of will (will you go out or spend 3 hours studying on Thursday your first week? Will you get wasted on Saturday night and feel human around 4pm Sunday, or will you go play basketball with your house league so that on Sunday 1pm you’re in the library?) Yes, an austere life, unlike the rvelry you send depicted in movies. And that may not, is unlikely to be, be enough. You’ll have to go see a tutor, go to office hours with sit in the first three rows in front of the podium in the lecture hall, turn off all devices while in lecture or recitation.
Being pre-med is an intention. 3/4 would-be pre-meds don’t continue, some because they found more interesting pursuits, some because they can’t.
You may want to read the tumbler by Afrenchie36 to see what to do as a pre-med.