CHEM 20AH
Chemical Structure (Honors)
Grades
3.72
Average grade awarded in CHEM 20AH. Not a student rating: this is what the grades were.
In the A range
72%
of the 191 letter grades
D, F or W
0.0%
of every letter grade awarded, plus withdrawals
Taken pass/no pass
1%
0 of 1 student passed
The registrar's own records: 191 grades over 5 terms, Fall 2021 to Fall 2025. Every instructor is pooled here.
What is inside that record
No summer session is in that record.
The table below splits them, and term averages across those 5 terms ran 3.57 to 3.90.
Historical grades for all professors, across recorded terms. The course summary above includes all professors.
- A+ 51 · 26.7%
- A 67 · 35.1%
- A- 20 · 10.5%
- B+ 26 · 13.6%
- B 20 · 10.5%
- B- 6 · 3.1%
- C 1 · 0.5%
- NP 1 of 193
- I 1 of 193
Percentages are of the 191 letter grades. Grey bars are non-letter outcomes: no-passes (NP) and incompletes (I).
How the non-letter outcomes are counted
They are excluded from the GPA entirely rather than scored, because counting a P as a 4.0 would be a fabrication.
By instructor
| Instructor | Predicted GPA | Raw | n | Terms | A range | Workload | Summer Session A 2026 |
|---|---|---|---|---|---|---|---|
| GELBART, WILLIAM M reviews ↗ | 3.63 | 3.62 | 82 | 2 | 61% | heavy | not teaching it |
| NARANG, PRINEHA reviews ↗ | 3.84 | 3.90 | 41 | 1 | 88% | heavy | not teaching it |
| ALEXANDROVA, ANASTASSIA N reviews ↗ | 3.71 | 3.71 | 37 | 1 | 73% | - | not teaching it |
| KAVNER, ABBY reviews ↗ | 3.73 | 3.75 | 31 | 1 | 81% | very light | not teaching it |
Why Predicted is not the Raw average
“Predicted” is shrunk toward the course average, which is itself shrunk toward the department, so an instructor with a handful of students sits near the course mean rather than topping the list.
Grade records describe outcomes. For what a course is like to take, read student reviews written on dibs below or follow the separate external review link.
Workload and assignments
Work types reported in BruinWalk reviews of this course, across recorded instructors and terms. They may differ from this term's syllabus.
dibs has read this course’s reviews and none of them say what kind of work it sets, so dibs has nothing to show rather than a guess. Read from 106 reviews about 1 month ago. That is the reviewers being silent, and not a course that sets no work.
From the registrar's catalog
Lecture, three hours; discussion, one hour. Preparation: high school chemistry or equivalent background, high school physics, and three and one half years of high school mathematics. Enforced corequisite: Mathematics 31A. Honors course parallel to course 20A. P/NP or letter grading.
Sections in Summer Session A 2026
From the people who took it
Student reviews
What taking CHEM 20AH was like: the work, the teaching, and what students wish they’d known.
Your experience could be the first.
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