CHEM 20A · Dis 1C
Chemical Structure
Seats, time, final and grades
Seats
Open, 1 seat left.
58 of 59 enrolled.
Read 45 minutes ago. This is a recent reading, not a live seat count.
Its lecture reads closed (350 of 350 enrolled): you attend both, so this seat is not one you can take while that holds. No waitlist listed.
Meets
W 2:00pm-2:50pm
This discussion only. You also attend Lec 1.
Final
Mon 7 Dec, 3:00pm to 6:00pm
One exam for the whole class, Los Angeles time.
Read 73 minutes ago.
Grades
Predicted GPA
dibs has seen this section open 15 times since 17 August. The last time was 12 October. 8 of those were readings where the capacity figure moved and the enrolled count did not, so dibs could not tell whether a seat existed and did not send an alert.
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What watching takes
Your setup, with any current hold shown beside the watch control.
An account
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Your year
Helps dibs interpret enrollment limits. Uncertain eligibility may still be included with a caveat.
When you can enroll
Set your appointment or acknowledge that an open seat may not be available to you yet.
A watch slot
25 per account. A lecture watch also covers its discussions. Paused watches still use a slot.
Before you can enroll
From the registrar Registrar note
Any student attempting to save or sell a spot for another student is violating Student Conduct Code 102.23d and may be referred to the Office of the Dean of Students. Seats are held for entering students who enroll through New Student Orientation sessions beginning July 2, 2026. New student restrictions will be lifted on September 15, 2026 at 8 a.m. PTE numbers are NOT available; do not contact the instructor for a PTE number.
The new-student hold ended on 15 September.
Restrictions read 73 minutes ago.
When it meets
Young Hall 2200
Grades
Predicted GPA
Of the 6 people in the grade record for CHEM 20A, the 2 with the most grades: 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, 11 mentions in past reviews
- Quizzes mentioned, no number given, 3 mentions in past reviews
- Papers mentioned, no number given, 1 mention in past reviews
- Problem sets mentioned, no number given, 5 mentions in past reviews
- Presentations mentioned, no number given, 1 mention in past reviews
Based on 336 reviews; source checked about 2 months 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
high risk chance of closing before your enrollment pass.
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
Seats over time
Filled by 20 over 2 months
15 times reopenedA dot is a reading where something moved: the seat count, the status, or the waitlist. Flat between dots joins recorded counts; changes between reads may be missed. 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: 45 minutes ago.
Show the readings (67)
| Recorded | Enrolled | Capacity | Status | Waitlist | Hours read |
|---|---|---|---|---|---|
| 18 Oct 22:52 | 58 | 59 | open | - | 43 of 166 |
| 12 Oct 01:32 | 58 | 59 | open | - | 23 of 87 |
| 8 Oct 11:12 | 59 | 59 | closed | - | 55 of 200 |
| 30 Sep 04:32 | 58 | 58 | waitlist | 1 of 2 | 2 of 5 |
| 30 Sep 00:02 | 58 | 58 | waitlist | 0 of 2 | 2 of 5 |
| 29 Sep 20:32 | 58 | 58 | waitlist | 1 of 2 | 15 of 48 |
| 27 Sep 21:32 | 58 | 58 | waitlist | 0 of 2 | 2 of 4 |
| 27 Sep 18:12 | 58 | 58 | waitlist | 1 of 2 | 2 of 4 |
| 27 Sep 15:02 | 58 | 58 | waitlist | 0 of 2 | 5 of 15 |
| 27 Sep 01:12 | 58 | 58 | waitlist | 1 of 2 | 2 of 5 |
| 26 Sep 21:42 | 58 | 58 | closed | 2 of 2 | 2 of 4 |
| 26 Sep 18:12 | 58 | 58 | waitlist | 1 of 2 | 2 of 5 |
| 26 Sep 14:42 | 58 | 58 | closed | 2 of 2 | 5 of 14 |
| 26 Sep 01:12 | 58 | 58 | waitlist | 1 of 2 | 8 of 26 |
| 25 Sep 00:22 | 58 | 58 | closed | 2 of 2 | 2 of 5 |
| 24 Sep 20:52 | 58 | 58 | waitlist | 1 of 2 | 2 of 3 |
| 24 Sep 18:12 | 58 | 58 | closed | 2 of 2 | 2 of 5 |
| 24 Sep 14:42 | 58 | 58 | waitlist | 1 of 2 | 5 of 16 |
| 23 Sep 23:42 | 58 | 58 | closed | 2 of 2 | 5 of 14 |
| 23 Sep 10:22 | 58 | 58 | waitlist | 1 of 2 | 3 of 18, 10 no hourly record |
| 22 Sep 17:52 | 58 | 58 | closed | 2 of 2 | no hourly record |
| 22 Sep 01:12 | 58 | 58 | waitlist | 1 of 2 | no hourly record |
| 20 Sep 21:42 | 58 | 58 | closed | 2 of 2 | no hourly record |
| 20 Sep 19:22 | 58 | 58 | waitlist | 1 of 2 | no hourly record |
| 19 Sep 21:22 | 58 | 58 | closed | 2 of 2 | no hourly record |
| 19 Sep 18:02 | 58 | 58 | waitlist | 1 of 2 | no hourly record |
| 15 Sep 11:32 | 58 | 58 | closed | 2 of 2 | no hourly record |
| 15 Sep 07:42 | 57 | 58 | open | 0 of 2 | no hourly record |
| 12 Sep 01:22 | 57 | 58 | open | - | no hourly record |
| 11 Sep 02:40 | 54 | 58 | open | - | no hourly record |
| 10 Sep 23:40 | 54 | 55 | open | - | no hourly record |
| 10 Sep 17:40 | 54 | 58 | open | - | no hourly record |
| 10 Sep 16:40 | 54 | 55 | open | - | no hourly record |
| 10 Sep 13:40 | 54 | 58 | open | - | no hourly record |
| 10 Sep 01:40 | 54 | 55 | open | - | no hourly record |
| 9 Sep 01:40 | 51 | 55 | open | - | no hourly record |
| 9 Sep 00:40 | 51 | 52 | open | - | no hourly record |
| 8 Sep 22:40 | 51 | 55 | open | - | no hourly record |
| 5 Sep 02:40 | 51 | 52 | open | - | no hourly record |
| 3 Sep 23:40 | 49 | 52 | open | - | no hourly record |
| 3 Sep 21:40 | 49 | 49 | closed | - | no hourly record |
| 3 Sep 11:27 | 49 | 52 | open | - | no hourly record |
| 26 Aug 00:40 | 49 | 49 | closed | - | no hourly record |
| 25 Aug 23:40 | 44 | 47 | open | - | no hourly record |
| 25 Aug 22:40 | 49 | 49 | closed | - | no hourly record |
| 25 Aug 21:55 | 44 | 47 | open | - | no hourly record |
| 25 Aug 20:55 | 49 | 49 | closed | - | no hourly record |
| 25 Aug 19:55 | 44 | 47 | open | - | no hourly record |
| 25 Aug 19:40 | 49 | 49 | closed | - | no hourly record |
| 24 Aug 19:55 | 44 | 47 | open | - | no hourly record |
| 24 Aug 17:55 | 44 | 44 | closed | - | no hourly record |
| 24 Aug 15:55 | 44 | 47 | open | - | no hourly record |
| 24 Aug 14:55 | 44 | 44 | closed | - | no hourly record |
| 24 Aug 12:55 | 44 | 47 | open | - | no hourly record |
| 24 Aug 11:55 | 44 | 44 | closed | - | no hourly record |
| 24 Aug 10:55 | 44 | 47 | open | - | no hourly record |
| 20 Aug 23:55 | 44 | 44 | closed | - | no hourly record |
| 20 Aug 22:55 | 38 | 42 | open | - | no hourly record |
| 20 Aug 21:55 | 44 | 44 | closed | - | no hourly record |
| 20 Aug 20:55 | 38 | 42 | open | - | no hourly record |
| 20 Aug 19:55 | 44 | 44 | closed | - | no hourly record |
| 20 Aug 18:55 | 38 | 42 | open | - | no hourly record |
| 20 Aug 17:55 | 44 | 44 | closed | - | no hourly record |
| 19 Aug 14:55 | 38 | 42 | open | - | no hourly record |
| 19 Aug 13:55 | 38 | 38 | closed | - | no hourly record |
| 19 Aug 12:55 | 38 | 42 | open | - | no hourly record |
| 17 Aug 16:42 | 38 | 38 | closed | - | - |
How readings and alerts work
Dated seat counts can be available even when hourly check history is missing. Gaps do not show whether seats changed between observations.
Seat counts show the last successful read, not live availability. Refreshes can be delayed by request limits or upstream interruptions. Watched sections receive priority, but an hourly update for every section is not guaranteed.
The registrar can change a seat count between our checks. Alerts depend on dibs detecting an opening and completing delivery; a quiet watch does not prove that no seat opened. Check the registrar before enrolling.
Class chat
Nobody on dibs watches this class or has it on a plan yet. Nobody has posted yet.
Dis 1C shares one room with Lec 1 and every other discussion under it, because that is what a student means by "my class".
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