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UCLA Chem 20A Past Exams & Practice Tests
29 past exams for UCLA Chemistry and Biochemistry 20A (Chem 20A): 23 midterms, 6 finals, covering Fall 2021 through Winter 2026.
These are real Chem 20A midterms and finals shared by UCLA students, organized by professor and quarter — the fastest way to practice for your next Chem 20A exam. Professors covered: Caram, Deifel, Eric Wu, Reslan, Scerri, Wilson, Wu.
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Access is free and limited to UCLA students (@ucla.edu / @g.ucla.edu).
Available Chem 20A exams
| Exam | Quarter | Professor |
|---|---|---|
| Final | Winter 2026 | Caram |
| Midterm 1 | Winter 2026 | Caram |
| Midterm 2 | Winter 2026 | Caram |
| Final (4 versions) | Fall 2025 | Wu |
| Midterm 1 | Fall 2025 | Eric Wu |
| Midterm 1 (7 versions) | Fall 2025 | Wu |
| Midterm 2 (6 versions) | Fall 2025 | Wu |
| Midterm | Winter 2025 | Reslan |
| Midterm 1 | Winter 2025 | Wilson |
| Midterm 1 | Winter 2025 | Wu |
| Final | Fall 2023 | Deifel |
| Midterm 1 | Fall 2023 | Deifel |
| Midterm 2 (2 versions) | Fall 2023 | Deifel |
| Midterm | Fall 2021 | Scerri |
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