AP Chemistry
Everything the book sends you online
Extra practice for every unit, walkthroughs, flashcards, and the full practice tests with worked answers. Scan a code in the book, or pick a page below.
Units
Atomic Structure
Atoms, electrons and the periodic table. Almost every question in this unit comes back to one idea: how strongly the nucleus holds each electron.
Unit 2Molecular Structure & Bonding
Bonds, Lewis structures, shapes and polarity. The chain to remember is structure, then shape, then properties.
Unit 3Intermolecular Forces & Properties
The forces between molecules, and the properties they control: boiling point, vapor pressure, solubility and the behavior of gases and solutions.
Unit 4Chemical Reactions
Balancing, net ionic equations, stoichiometry and redox. Atoms are conserved; only their arrangement changes.
Unit 5Kinetics
How fast reactions go and why: rate laws, half-lives, activation energy, mechanisms and catalysts.
Unit 6Thermodynamics
Energy in chemical change: enthalpy, calorimetry, Hess's law, entropy and Gibbs free energy.
Unit 7Equilibrium
Reversible reactions, the equilibrium constant, Q versus K, Le Châtelier's principle and solubility.
Unit 8Acids & Bases
Proton transfer at equilibrium: pH, strong and weak acids, Ka and Kb, buffers and titrations.
Unit 9Electrochemistry
Electron transfer, harnessed: galvanic and electrolytic cells, standard potentials, free energy and Faraday's law.
Practice tests
Tests 1, 3, 6 and 9 and both simulations are printed in the book; the rest are online only. Every one has worked answers here.
Practice Test 1
Foundation
PracticePractice Test 2
Foundation Online only
PracticePractice Test 3
Standard
PracticePractice Test 4
Standard Online only
PracticePractice Test 5
Standard Online only
PracticePractice Test 6
Advanced
PracticePractice Test 7
Advanced Online only
PracticePractice Test 8
Advanced Online only
PracticePractice Test 9
Expert
PracticePractice Test 10
Expert Online only
SimulationSimulation Test 1
Full exam
SimulationSimulation Test 2
Full exam