CHEM 20A · Lec 1
Chemical Structure
Summer Session A 2026 is over, so there is nothing here to watch. These are the numbers as that term finished.
Seats, time, final and grades
Seats
Open, 9 seats left.
91 of 100 enrolled, lecture and all discussions summed.
Meets
MWF 9:00am-10:50am
Lecture only. You also attend a discussion, listed below.
Final
Not read yet
dibs has not read this class page since it started reading exam times, so it does not know either way.
Grades
4,457 letter grades, everyone who has taught CHEM 20A.
Read 35 hours ago, at the end of the term. Nothing has moved since.
Put this class on a board
A board is one quarter you are drafting, so it needs an account to live in. Signing in brings you straight back to this page, with this class still in front of you.
Before you can enroll
dibs has not read this section's restrictions yet, so alerts on it are held. Check the registrar before counting on a seat.
Discussions
You enroll in the discussion, not the lecture, so the seat figure above is the sum across all of them and can read open while every discussion you could actually join is full.
2 discussions, all open.
-
Dis 1A
MW 11:00am-11:50am
Cheung, K.
Open, 1 seat left.
-
Dis 1B
MW 12:00pm-12:50pm
Cheung, K.
Open, 8 seats left.
| Section | Meets | Instructor | Seats |
|---|---|---|---|
| Dis 1A | MW 11:00am-11:50am | Cheung, K. | Open, 1 seat left. |
| Dis 1B | MW 12:00pm-12:50pm | Cheung, K. | Open, 8 seats left. |
When it meets
Meets: MWF 9:00am-10:50am
Discussions: MW 11:00am-11:50am · MW 12:00pm-12:50pm
Online
Grades
2 other people have taught CHEM 20A in the grade record: KAVNER, ABBY at 3.70 over 1,625 grades and SHAO, HUILING at 3.54 over 1,031 grades.
- A range
- 69%
- P/NP
- <1%
- D/F/W
- 2.9%
What students say
dibs measures outcomes: grades, seats, how fast it fills. For what the class is actually like to sit in, BruinWalk has the reviews.
What the work looks like
- Exams mentioned, no number given, said by 11 reviewers “At the beginning of the quarter, she told us that we'd be focusing on quantum mechanics and that it'd be an important topic, just to not have any questions on the final covering that topic.”
- Quizzes mentioned, no number given, said by 3 reviewers “There were 3 quizzes, one question each.”
- Papers mentioned, no number given, said by 1 reviewer “a final paper, which sounds like a lot (12-15 pages)”
- Problem sets mentioned, no number given, said by 5 reviewers “do the problem sets each week”
- Presentations mentioned, no number given, said by 1 reviewer “There're also two presentations that were really chill and a final paper”
Read from 336 reviews 3 days ago. dibs counts only what a review actually states, so a kind of work nobody mentioned is absent rather than zero.
Will it still be here
Not a question any more: see the notice at the top of this page.
Final enrollment per term from four years of grade data. Summer excluded: different population, different pass structure.
- 29521F
- 23122W
- 30422F
- 21423W
- 29223F
- 22924W
- 35124F
- 24525W
- 39225F
Peak 392 · most recent 25F at 392
Unchanged over 2 minutes
Both readings say 91 of 100.
A dot is a reading where something moved: the seat count, the status, or the waitlist. Flat between dots means it did not drift, it held and then jumped, and the line starts when dibs first saw this section rather than reaching back before it existed. The last one is the last time dibs read this section, moved or not, at the end of the term. Nothing has moved since.
Across the 1 hour from 2 Sep 03:05 to 2 Sep 03:06, dibs holds a read record for 1 of them. Every hour plotted carries a read, so a flat run here means checked and unchanged.
Show the readings (2)
| Recorded | Enrolled | Capacity | Status | Waitlist | Hours read |
|---|---|---|---|---|---|
| 2 Sep 03:06 | 91 | 100 | open | 0 of 20 | 1 of 1 |
| 2 Sep 03:05 | 91 | 100 | open | 0 of 20 | - |
Class chat
Nobody on dibs watches this class or has it on a plan yet. Nobody posted here.
Summer Session A 2026 has ended, so no room can be started here now.