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Exam prep · AP Chemistry

AP Chemistry flashcards for all nine units

AP Chemistry problems are mostly setups you have seen before with different numbers. Flashcards make the setups automatic: which equation, which sign convention, which trend. Study the decks below and card every worked example your teacher emphasizes.

Start studying free Turn my prep book into flashcards

Updated 2026-10-23. Decks are shared by Quizcard and its users; study them on the page or copy them into a free account.

AP Chemistry at a glance

Format: Section I: 60 multiple-choice questions, 90 minutes, 50%. Section II: 7 free-response questions (3 long, 4 short), 105 minutes, 50%.
Length: 3 hours 15 minutes. Calculator permitted on both sections; a periodic table and equation sheet are provided.
Scoring: 1 to 5.
Date: Early May each year.

What the AP Chemistry tests

Unit 1: Atomic Structure and Properties. 7 to 9%. Moles, mass spectrometry, electron configuration, periodic trends. Study guide →
Unit 2: Compound Structure and Properties. 7 to 9%. Bonding, Lewis structures, VSEPR, hybridization. Study guide →
Unit 3: Properties of Substances and Mixtures. 18 to 22%. Intermolecular forces, gases, solutions, spectroscopy. Study guide → Watch the lesson →
Unit 4: Chemical Reactions. 7 to 9%. Net ionic equations, stoichiometry, titration, reaction types. Study guide → Watch the lesson →
Unit 5: Kinetics. 7 to 9%. Rate laws, mechanisms, catalysis. Study guide →
Unit 6: Thermochemistry. 7 to 9%. Enthalpy, calorimetry, Hess’s law. Study guide →
Unit 7: Equilibrium. 7 to 9%. K, Q, Le Châtelier, solubility. Study guide →
Unit 8: Acids and Bases. 11 to 15%. pH, weak acids and bases, buffers, titration curves. Study guide →
Unit 9: Thermodynamics and Electrochemistry. 7 to 9%. Entropy, Gibbs free energy, galvanic and electrolytic cells. Study guide →

AP Chemistry unit study guides

Each guide is the unit on one page: a mindmap, the ideas in order, a worked exam-style question, the mistake students make most, then the flashcards and quiz for it.

Free AP Chemistry flashcard decks

Missing a topic? Upload the chapter from your prep book and Quizcard builds the deck for you, grouped by topic, with figures kept from PDFs. How it works.

Test yourself: free AP Chemistry practice quizzes

Each quiz scores you at the end and explains every answer. Redo it any time; the questions reshuffle.

AP Chemistry video lessons

One unit per video: the ideas, a worked exam-style question and the mistake students make most. Study the flashcards and take the quiz above after watching.

Properties of Substances and Mixtures

Unit 3: Properties of Substances and Mixtures · 5 min · Watch on YouTube · 30-second version

Unit 4: Chemical Reactions — Net Ionic Equations to Titration

Unit 4: Chemical Reactions · 5 min · Watch on YouTube · 30-second version

Sample cards from “Chemistry: Atomic Structure and Periodic Trends”

What are the alkali metals and where are they found?

Answer: Group 1 elements (Li, Na, K, Rb, Cs, Fr) — very reactive metals that form +1 ions.

Explanation

Reactivity increases down the group.

What is Avogadro's number and what does a mole represent?

Answer: 6.022 × 10^23; one mole is that many particles of a substance.

Explanation

The molar mass in grams equals the atomic/molecular mass in amu.

What is a metallic bond?

Answer: Attraction between metal cations and a 'sea' of delocalized electrons.

Explanation

Explains conductivity, malleability, and luster of metals.

What is the octet rule?

Answer: Atoms tend to gain, lose, or share electrons to have eight valence electrons.

Explanation

Hydrogen is an exception, needing only two.

What makes a covalent bond polar?

Answer: A difference in electronegativity between the bonded atoms, so electrons are shared unequally.

Explanation

Example: the O–H bonds in water.

What is a covalent bond?

Answer: A bond formed when two nonmetals share one or more pairs of electrons.

Explanation

Single, double, and triple bonds share 1, 2, or 3 pairs.

Showing 6 of 30 cards. Study the whole deck or copy it into your account.

A flashcard study plan for the AP Chemistry

Through the year: after each unit, generate a deck from the chapter or slides and study it before the test.
8 weeks out: two units a week from the decks and your own. One released FRQ set every weekend, timed.
3 weeks out: full practice exam. Card each missed concept with the setup, not the arithmetic.
Final week: trends, equations and sign conventions daily; missed deck every morning.

How to write AP Chemistry cards that work

Trend cards: “ionization energy across a period and down a group, and why.”
Equilibrium and acid-base cards should include the ICE-table setup as the answer.
Card the units of every constant on the equation sheet; unit mismatches are the most common lost points.
Keep graphs. A titration curve cropped from the textbook with “label the equivalence point and buffer region” on the front is an excellent card.

Questions

Do the decks include organic chemistry?

AP Chemistry does not test organic reactions. The organic deck on Quizcard is for the MCAT and university courses.

Can I generate cards from my lab manual?

Yes, from the PDF. Lab-based FRQs reward knowing procedure and error sources.

Is the equation sheet enough, or should I memorize?

Know how to use every equation on the sheet without hunting for it; card the situations each one fits.

Other exams

Official information: College Board: AP Chemistry. Formats and weights change; check the official page before test day.

Try it with your own material

Upload a PDF, slides or notes and study the deck in minutes. Making your own cards is free with no limits.

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