AP Chemistry
AP Chemistry asks you to connect particle-level models to data and calculations. According to the College Board, the exam has two sections of equal weight: 60 multiple-choice questions in 1 hour 30 minutes (50%), and 7 free-response questions in 1 hour 45 minutes (50%) — 3 long-answer questions worth 10 points each and 4 short-answer questions worth 4 points each. It's a hybrid digital exam: multiple choice in Bluebook, free-response answers handwritten in a paper booklet. Calculators are permitted and reference information is provided. The 2027 exam is on May 6, 2027.
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The course has 9 units. Properties of Substances and Mixtures (18–22%) and Acids and Bases (11–15%) carry the largest weighting ranges; the other seven units are each 7–9%.
Study Guide Maker turns your class slides, text-based PDFs, Word docs or notes into a guide for each unit: an outline, key concepts tagged to the page or slide they came from, a glossary, practice questions and flashcards. Choose the AP/IB level. Type key equations into your notes if they only appear as images, and pair the guide with free-response practice from AP Central.
Section I: Multiple choice
60 · 1 hour 30 minutes · 50% of score
Discrete questions or question sets based on a stimulus or data
Section II: Free response
7 (3 long, 4 short) · 1 hour 45 minutes · 50% of score
Long: 10 points each; short: 4 points each. Assesses all 6 course skills. Calculators permitted; reference information provided
| Unit | Weight |
|---|---|
| 1. Atomic Structure and Properties | 7–9% |
| 2. Compound Structure and Properties | 7–9% |
| 3. Properties of Substances and Mixtures | 18–22% |
| 4. Chemical Reactions | 7–9% |
| 5. Kinetics | 7–9% |
| 6. Thermochemistry | 7–9% |
| 7. Equilibrium | 7–9% |
| 8. Acids and Bases | 11–15% |
| 9. Thermodynamics and Electrochemistry | 7–9% |
Facts checked against official sources on 2026-10-09. We do not invent pass rates or guarantee scores — verify dates and weightings on the publisher site before you rely on them.
Nine unit guides in the order your class taught them.
Topics with page or slide references.
Explain the 'why' behind trends and properties.
Each equation, variables, units, and when to use it — cross-check with the official reference information.
Steps for stoichiometry, equilibrium, pH and electrochemistry problems; add worked examples.
Questions on experimental design, error and interpreting data from your labs.
Conceptual multiple choice and short answer.
Ions, definitions, relationships; export as CSV.
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Biology
Cellular respiration is how cells turn the chemical energy in glucose into ATP. It happens in three stages — glycolysis, the Krebs cycle, and the electron transport chain — and releases carbon dioxide and water as by-products.
Sample output for illustration.
Per the College Board: 60 multiple-choice questions in 1 hour 30 minutes (50%) and 7 free-response questions — 3 long and 4 short — in 1 hour 45 minutes (50%). It's a hybrid digital exam, and calculators are permitted.
In the College Board's current unit list, Properties of Substances and Mixtures is 18–22% and Acids and Bases is 11–15%; the other seven units are each 7–9%.
Yes, if they're typed as text. Equations inserted as images aren't read — type them into your notes first.
Practice questions focus on the concepts in your material (multiple choice and short answer). Use your problem sets and released free-response questions for calculation practice.
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