AP Chemistry Prep: Units & Free Practice
AP Chemistry is a college-level chemistry exam scored 1–5. Here's what its nine units cover and how it's structured — with free COSMIQ practice that emphasizes models, math, and lab reasoning.
COSMIQ prepares you for the AP Chemistry and administers realistic full-length mock tests — it does not administer the official test.
Frequently asked
What does AP Chemistry cover?
Nine units, from atomic structure and bonding through kinetics, thermodynamics, equilibrium, and acids and bases — assessed with multiple-choice and free-response questions, including quantitative problems and experimental design.
Is AP Chemistry practice on COSMIQ free?
Yes. AP practice on COSMIQ is free — voice tutoring, a smart board, and realistic practice questions, with no card required.
Estimate your score with the free AP Chemistry score calculator.