AP Chem is pretty comparable to Honors Inorganic Chem at my school (prelims/finals were basically AP questions.
For a CS major, you’ll probably have to take classes like Calc II, Calc III (maybe Calc I although I think colleges mainly start off with II), Linear Algebra, Diff EQ etc. Calc II is essentially AP Calc BC. If you only have AB credit, you’d probably be better starting off with Calc II and working from there.
In any respect, no AP covers a full year of material.