Atomic structure, bonding, reactions, and equilibrium
Know the structure before you walk in.
60 questions, 90 minutes, 50% of score.
Covers atomic structure, bonding, reactions, and equilibrium.
7 questions (3 long, 4 short), 105 minutes, 50% of score.
Includes experimental design, analysis, and equilibrium problems.
Scientific or graphing calculator allowed throughout.
Equation sheet and periodic table provided. Total time: 3 hours 15 minutes.
Approximately 17% of students score a 5.
Scores of 3+ typically earn college credit.
Click any unit to access study guides, practice tests, flashcards, videos, and more.
Unit 1Elements, periodic trends, atomic models, and spectroscopy
Unit 2Bonding, Lewis structures, VSEPR, and intermolecular forces
Unit 3IMFs, states of matter, solutions, and gas laws
Unit 4Stoichiometry, aqueous solutions, titrations, and types of reactions
Unit 5Reaction rates, rate laws, collision theory, and reaction mechanisms
Unit 6Enthalpy, entropy, Gibbs free energy, and calorimetry
Unit 7Equilibrium constant, Le Châtelier's principle, and solubility
Unit 8pH, buffers, titrations, and weak acid/base equilibria
Unit 9Electrochemistry, electrolysis, and thermodynamic favorability
Everything you need to master AP Chemistry.
Complete unit-by-unit breakdown with key concepts and formulas.
Open GuideFull-length timed exam with AP-style questions and scoring.
Start TestKey terms and concepts in an easy-to-review format.
Study CardsStep-by-step walkthroughs of the hardest topics.
Watch NowOne-page printable with all essential formulas and facts.
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