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AP Chemistry

Summer - Fall 2026
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 of 9 units, and will be releasing the rest of the units over summer and 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 Properties Live

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 PropertiesComing soon

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 MixturesComing soon

18-22% of exam
Explain gases, liquids, solids, and solutions using intermolecular forces and particulate models.
Use concentration, dilution, separation data, and gas relationships to analyze mixtures.
Connect chromatography, spectroscopy, and solution behavior to structure and interactions.

AP Unit 4: Chemical ReactionsComing soon

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, oxidation-reduction, and other reaction patterns.

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
Analyze pH, pOH, strong acids, strong bases, weak acids, and weak bases quantitatively.
Use Ka, Kb, buffers, titrations, and indicators to reason about acid-base systems.
Connect particulate representations to acid-base equations, equilibrium calculations, 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

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TEKS High School Chemistry
High-school quantitative chemistry foundation.
NGSS High School Chemistry
Conceptual chemistry foundation.
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General Chemistry I
College first-semester chemistry overlap.
What's next
General Chemistry II
Second-semester college chemistry.

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Core

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$299/year

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  • Personalized learning path
  • Spaced repetition system
  • Lessons and multi-steps
  • Access to all courses
  • Free Response Questions (FRQs)
  • Full-length practice exams
  • Score guarantee

Test Prep

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everything you need to ace the AP exam

$599/year

$50/mo·Save 50%

  • Personalized learning path
  • Spaced repetition system
  • Lessons and multi-steps
  • Access to all courses
  • Free Response Questions (FRQs) with AI grading
  • Full-length practice exams
  • Guaranteed 5 or your money back

All plans include a 7-day free trial. Cancel anytime. 14-day no-questions-asked refund policy. The score guarantee applies to Test Prep subscribers who complete the full curriculum before their exam.