Cracking the AP Chemistry Exam 2020, Premium Edition provides students with thorough subject reviews of all relevant topics, including atomic structure, thermodynamics, the periodic table, fundamental laws, organic chemistry, molecular binding, and key equations, laws, and formulas. It also includes helpful tables, charts, and diagrams, and detailed advice on how to write a high-scoring essay. This Premium Edition includes 5 total full-length practice tests (4 in the book and 1 online)for the most practice possible.