AP® Exam Prep · College Board Course

AP Chemistry Practice Test: Free Questions, Flashcards & Unit Review

Prepare for AP Chemistry with free independent practice, flashcards, and quick review. Strengthen atomic structure, chemical reactions, equilibrium, and data reasoning, then compare a general chemistry guide with your course needs.

AP CHEMISTRY STUDY HUB — original handwritten comic illustration.

MEET THE ASSESSMENT · CHOOSE YOUR NEXT SKILL

Know AP Chemistry before you start.

What is the official AP Chemistry exam format?

College Board lists a 3-hour-15-minute hybrid digital exam: 60 multiple-choice questions in 90 minutes and seven free-response questions in 105 minutes. Each section contributes half the score. The independent practice form here supports multiple-choice study; also prepare written explanations, calculations, and experimental reasoning.

Official assessment information ↗

Chemical concepts

Connect particle models, equations, and observations. Check that your explanation describes the same reaction.

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Calculation practice

Write units at each step and check whether the answer fits the chemical quantities in the question.

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Free-response work

Practice written calculations and experiment explanations. Follow the official assessment link for released questions.

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PRACTICE TEST 160 QUESTIONS

Practice Test 1

Complete the timed practice form, then review every answer explanation.

  • 60 independent practice questions
  • 90-minute countdown after Begin Test
  • Explanations shown after submission
QUICK REVIEW49 BOXES

Quick Review

Review one concept before practice, then revisit ideas behind your missed answers.

  • 49 concept review boxes
  • One popup study view
  • Return to the Online Center after review
FLASHCARDS217 CARDS

Flashcards

Use active recall to review the terms and ideas in this subject.

  • 217 concept flashcards
  • Search, filter, shuffle, and flip
  • Mark known cards as you study
STUDY MAP5 DOMAINS

Study Topics

Choose a study topic, then use quick review or flashcards to strengthen it.

  • 5 domain cards
  • 49 topics listed below
  • Use review and flashcards for your chosen topic
View study topics
Know before you go

Your Free Study Tools at a Glance

This study Online Center centers the timed practice form, then gives you the quick-review boxes and flashcards you need to repair missed concepts.

📝60Practice questionsIndependent practice form
⏱️90MinutesCountdown timer
🔵217FlashcardsActive recall deck
🟣49Review boxesQuick review
A useful review rule: Do not stop at naming the concept. Explain what it means, how it works, and why it matters in the subject you are studying.
Topic map

AP Chemistry Topics: Learn and Review

Choose a topic for your next session. Check the official assessment guidance above for current requirements.

49 topics
  1. 1. Electron Configuration and the Periodic Table
  2. 2. Coulomb's Law and Atomic/Ionic Radius Trends
  3. 3. Ionization Energy and Photoelectron Spectroscopy (PES)
  4. 4. Mass Spectrometry and Average Atomic Mass
  5. 5. Types of Chemical Bonding and Lattice Energy
  6. 6. Lewis Structures, Formal Charge, and Resonance
  7. 7. VSEPR Geometry and Molecular Polarity
  8. 8. Hybridization, Sigma/Pi Bonds, and Bond Order
  9. 9. Intermolecular Forces (IMFs)
  10. 10. Solids: Types, Structures, and Properties
  11. 11. Gas Laws and Kinetic Molecular Theory
  12. 12. Solutions: Concentration and Solubility
  13. 13. Colligative Properties
  14. 14. Spectroscopy and the Beer--Lambert Law
  15. 15. Types of Chemical Reactions and Net Ionic Equations
  16. 16. Stoichiometry and Percent Yield
  17. 17. Titration Stoichiometry
  18. 18. Oxidation--Reduction (Redox) Reactions
  19. 19. Reaction Rates and Rate Laws
  20. 20. Integrated Rate Laws and Half-Life
  21. 21. Reaction Mechanisms and the Rate-Determining Step
  22. 22. Collision Theory, Activation Energy, and Catalysts
  23. 23. Calorimetry and Specific Heat
  24. 24. Hess's Law and Enthalpies of Reaction
  25. 25. Bond Enthalpy and Energy Diagrams
  26. 26. Equilibrium Constant Expressions and Q vs. K
  27. 27. ICE Tables and Solving for Equilibrium Concentrations
  28. 28. Le Chatelier's Principle
  29. 29. Solubility Equilibria (\(K_sp\))
  30. 30. Bronsted--Lowry Acids/Bases, \(K_a\)/\(K_b\), and pH
  31. 31. Strong vs. Weak Acids/Bases and Percent Ionization
  32. 32. Acid--Base Titration Curves
  33. 33. Buffers and the Henderson--Hasselbalch Equation
  34. 34. Molecular Structure and Acid Strength
  35. 35. Entropy and the Second Law of Thermodynamics
  36. 36. Gibbs Free Energy and Spontaneity
  37. 37. Galvanic (Voltaic) Cells and Cell Potential
  38. 38. Electrolytic Cells and Faraday's Law
  39. 39. Standard Reduction Potentials and Predicting Redox Spontaneity
  40. POWER BOX 1 --- Core Formula Sheet
  41. POWER BOX 2 --- Pairs Students Always Confuse
  42. POWER BOX 3 --- Core Taxonomy: Reactions, Solids, and Cells
  43. POWER BOX 4 --- Required Reference: Constants, Strong Acids/Bases, and Common Ions
  44. POWER BOX 5 --- Method: Answering a Calculation/Lab-Based FRQ
  45. POWER BOX 6 --- Exam Format & Question-Type Playbook
  46. POWER BOX 7 --- Pathway: Setting Up and Solving an Equilibrium (ICE) Problem
  47. POWER BOX 8 --- Data & Graph Analysis Emergency Guide
  48. POWER BOX 9 --- AP Trap Statements
  49. POWER BOX 10 --- Final 15-Minute Review

Use this topic list to plan review. The independent study resources are not an official exam blueprint.

Study Topics

Start with the domains below, then use the practice center to turn recognition into recall.

01

1. Electron Configuration and the Periodic Table

Use the quick review first, then check this domain with the practice questions and flashcards.

02

2. Coulomb's Law and Atomic/Ionic Radius Trends

Use the quick review first, then check this domain with the practice questions and flashcards.

03

3. Ionization Energy and Photoelectron Spectroscopy (PES)

Use the quick review first, then check this domain with the practice questions and flashcards.

04

4. Mass Spectrometry and Average Atomic Mass

Use the quick review first, then check this domain with the practice questions and flashcards.

05

5. Types of Chemical Bonding and Lattice Energy

Use the quick review first, then check this domain with the practice questions and flashcards.

AP Chemistry builds from atomic structure to equilibrium and thermodynamics. This Online Center covers 39 topics, including electron configuration, hybridization and bond order, stoichiometry and percent yield, Hess’s law, and reading acid-base titration curves, with 217 flashcards and a 60-question test.

Study path

  1. Map the main domains in the Study Topics.
  2. Take the practice test and read every explanation.
  3. Use Quick Review and Flashcards to repair weak spots, then retest.

The practice tools open in a focused study window so you can keep your place on this Online Center.

A USEFUL NEXT STEP

AP Chemistry: study questions

What is the official AP Chemistry exam format?

College Board lists a 3-hour-15-minute hybrid digital exam: 60 multiple-choice questions in 90 minutes and seven free-response questions in 105 minutes. Each section contributes half the score. The independent practice form here supports multiple-choice study; also prepare written explanations, calculations, and experimental reasoning.

Official source ↗
How should I use these independent AP Chemistry study tools?

Start with a practice activity, review explanations for missed questions, and use quick review or flashcards for one weak topic. The practice results are study feedback, not official exam scores. Compare a book’s contents with your course or test requirements before buying.

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