Practice AP® Chemistry multiple choice problems with detailed explanations and strategies to excel on the exam. Cover key topics including stoichiometry, gas laws, kinetics, equilibrium, acids and bases, thermodynamics, thermochemistry, electrochemistry, Le Chatelier's principle, Gibbs free energy, entropy, and enthalpy. Learn tips, tricks, and efficient problem-solving techniques for each question, designed to closely mimic the real AP® Exam format. Work through 20 practice questions with step-by-step solutions, aiming to improve your understanding and test-taking skills for a top score. Note: At 15:00, for question 5, the correct term is "equivalence point," not "end point."