Chemistry format
The multiple-choice section, part by part
- 60
- questions
- 90
- minutes
- 4
- choices each
Sections
| Part | Questions | Minutes |
|---|---|---|
| Section I: Multiple Choice | 60 | 90 |
- A scientific or graphing calculator is allowed, as on the real exam. This site has no built-in calculator, so have your own ready
- The real exam supplies a periodic table and an equations and constants sheet; here every atomic mass, constant and equation a question needs is printed in the question
- Four sets of three questions share one data table or experiment
Units and weights
| Unit | Weight |
|---|---|
| Atomic Structure and Properties | 7-9% |
| Compound Structure and Properties | 7-9% |
| Properties of Substances and Mixtures | 18-22% |
| Chemical Reactions | 7-9% |
| Kinetics | 7-9% |
| Thermochemistry | 7-9% |
| Equilibrium | 7-9% |
| Acids and Bases | 11-15% |
| Thermodynamics and Electrochemistry | 7-9% |
How the practice test is scored
A correct answer earns one point and a wrong or blank answer earns nothing, as on the real exam, so it always pays to answer. The result is the number correct and the percentage. The multiple-choice section is 50% of the AP score; the rest comes from free response, which is not simulated here, so no AP score of 1 to 5 is shown.
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Every part at real length and timing, with an explanation for every answer. Free, with an account.
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