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AP Chemistry

Partially released · 48%
AP Chemistry is an introductory college-level chemistry course for students preparing for the College Board exam. The course follows the current nine-unit AP Chemistry sequence, and aligns with the AP scientific and engineering practices. We use a variety of question types, as well as practice Free Response Questions, to ensure students are prepared for every part of the test. We have currently released the first 4 of 9 units, and will be releasing the rest of the units over the course of fall 2026.
AP Chemistry alignment: Coverage tracks AP Chemistry course topics, unit weights, and science practices.
College Board AP Chemistry: AP Central course overview and classroom resources.

AP Chemistry Learning Outcomes

AP Unit 1: Atomic Structure and PropertiesLive

32 topics • 7-9% of exam
Use moles, molar mass, isotopes, and mass spectra to connect measurable samples to particles.
Model electron structure with shells, subshells, electron configurations, and photoelectron spectroscopy.
Explain periodic trends using Coulombic attraction, shielding, and effective nuclear charge.

AP Unit 2: Compound Structure and PropertiesLive

7-9% of exam
Connect ionic, covalent, and metallic bonding to particle-level structure and macroscopic properties.
Use Lewis diagrams, resonance, formal charge, and VSEPR to reason about molecular structure.
Relate bond polarity, molecular polarity, and geometry to chemical behavior.

AP Unit 3: Properties of Substances and MixturesLive

18-22% of exam
Explain gases, liquids, solids, and solutions using intermolecular forces and particulate models.
Relate intermolecular forces, phase changes, and phase diagrams to observable properties.
Apply kinetic molecular theory and gas-law relationships to samples under changing conditions.
Analyze solutions using concentration, molarity, dilution, and solubility.
Interpret separation data, chromatography, and spectroscopy to characterize mixtures.

AP Unit 4: Chemical ReactionsLive

7-9% of exam
Represent reactions with balanced equations, net ionic equations, and particle diagrams.
Use stoichiometry, limiting reactants, and percent yield to connect reaction models to measurable quantities.
Classify and explain acid-base, precipitation, and oxidation-reduction reactions.

AP Unit 5: KineticsComing soon

7-9% of exam
Analyze reaction-rate data using rate laws, concentration-time graphs, and half-life reasoning.
Connect mechanisms, elementary steps, rate-determining steps, and catalysts to observed rates.
Use collision theory and energy profiles to explain how reactions proceed.

AP Unit 6: ThermochemistryComing soon

7-9% of exam
Track heat transfer with calorimetry, heat capacity, and phase-change reasoning.
Use enthalpy, Hess's law, bond energies, and energy diagrams to explain reaction energy.
Distinguish system, surroundings, endothermic processes, and exothermic processes in chemical contexts.

AP Unit 7: EquilibriumComing soon

7-9% of exam
Use equilibrium constants, reaction quotients, and ICE tables to describe reversible reactions.
Predict shifts with Le Chatelier's principle while keeping the equilibrium expression and reaction model clear.
Apply equilibrium reasoning to gases, solutions, and solubility systems.

AP Unit 8: Acids and BasesComing soon

11-15% of exam
Distinguish strong and weak acids and bases using equations and particulate representations.
Calculate pH, pOH, and equilibrium concentrations for acid-base systems.
Use Ka, Kb, and conjugate acid-base relationships to reason quantitatively.
Analyze buffers, titrations, indicators, and titration curves.

AP Unit 9: Thermodynamics and ElectrochemistryComing soon

7-9% of exam
Use entropy, Gibbs free energy, and equilibrium connections to evaluate spontaneity.
Connect cell potential, galvanic cells, electrolytic cells, and the Nernst equation to redox processes.
Reason across particle models, energy diagrams, equations, and experimental cell measurements.

Related courses

Easier versions
High School Chemistry (Algebra)
High School Chemistry (Conceptual)
Similar courses
General Chemistry I

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