AP Chemistry Exam Format 2026
days until your AP Chem exam
Tue, May 5 · Morning session
The exam at a glance
Section I - Multiple Choice
50% of score
Discrete questions plus question sets based on lab data, graphs, and particulate models. No calculator.
Section II - Free Response
50% of score
Three long FRQs followed by four short FRQs. Calculator permitted. Reference tables and periodic table supplied.
Free-response breakdown
Seven questions, graded on task-specific rubrics. The three long FRQs combine calculation with explanation.
Experimental Design & Analysis
Design or evaluate an experiment and analyze the resulting data.
Translation Between Representations
Convert between particle diagrams, equations, and macroscopic observations.
Short Answer - Representations
Explain a phenomenon using a model or representation with supporting reasoning.
Short Answer - Calculation
Carry out a multi-step calculation with correct units and sig figs.
Short Answer - Reasoning
Justify a claim about chemical structure or behavior.
Short Answer - Data Analysis
Interpret lab data and draw a supported conclusion.
Short Answer - Model Comparison
Compare two models or explain why one better fits the evidence.
A 3 means no college credit. A 5 locks it in.
Write one real AP Chem FRQ and see if you're on track.
What the exam covers
Nine units. Equilibrium, acids and bases, and intermolecular forces typically dominate the FRQs.
- U17–9%
Atomic Structure and Properties
- U27–9%
Molecular and Ionic Compound Structure & Properties
- U318–22%
Intermolecular Forces and Properties
- U47–9%
Chemical Reactions
- U57–9%
Kinetics
- U67–9%
Thermodynamics
- U77–9%
Equilibrium
- U811–15%
Acids and Bases
- U97–9%
Applications of Thermodynamics
The six science practices
Every question tests one of these. FRQs lean heavily on argumentation and mathematical routines.
- 1Models and Representations
- 2Question and Method
- 3Representing Data and Phenomena
- 4Model Analysis
- 5Mathematical Routines
- 6Argumentation
Exam day essentials
Scientific or graphing calculator (Section II only)
Allowed on free response, not on multiple choice. Know stoichiometry and log routines cold.
Periodic table and reference tables provided
The formula sheet includes equilibrium expressions, thermodynamics, and kinetics equations.
3 hr 15 min total
Multiple choice (90 min), short break, then seven free-response questions (1 hr 45 min).
Frequently Asked Questions
The AP Chemistry exam combines 60 multiple-choice questions with 7 free-response questions that require both calculations and written scientific explanation.
Start with the sections that carry the most weight or expose your biggest weakness, then practice under realistic timing.
Match your practice blocks to real section demands so your pacing, accuracy, and task recognition improve together.
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