CHEM2521 Molecular Stability and Reactivity (University of Sydney): rated 2.7/5 overall across 12 reviews collected on USYD Wall.
CHEM2521 is a University of Sydney course taught by the Faculty of Science in Chemistry Academic Operations. This page brings together its handbook details and what USYD students say about it.
Review data updated 2026-10-24.
Chinese title: 分子稳定性与反应性
Type: Undergraduate
Credit points: 6
Subject area: Chemistry Academic Operations
Faculty: Faculty of Science
Level: Undergraduate Level 2
Handbook year: 2026
There are over 144 million chemical substances so far identified, a diversity that makes possible the rich fabric of the material and biological worlds. Underpinning this huge diversity are a few fundamental rules of electronic arrangements in atoms and molecules that determine what molecules will be stable and when they will undergo transformation by chemical reaction.
CHEM2521 has 12 scored reviews: overall 2.7/5 · usefulness 3.0 (all out of 5; higher difficulty means harder).
Sources: 1 StudentVIP review (average 3.0 stars); 11 Reddit comments that an AI model judged to be reviewing this course (average would-recommend 2.7/5).
On Reddit: "Chem2521 is pretty difficult in terms of the final exam, but the lab marks are pretty free and you will not suffer signfiicant deductions if you follow the criteria given. I did not do Chem2524 so cannot comment on that but sould be similar in that finals is the hardest part. Fo…"
On Reddit: "this may be a bit late but I did chem2521, 2522 and 2523 last year. imo 2523 was the easiest, however its more towards biology (all abt the chemistry of the 4 main biomolecules proteins/lipids/carbs/nucleic acids). 2521 was my favourite, definitely the most challenging but super…"
The course panel on USYD Wall shows every review and discussion in full.
Q: Is CHEM2521 worth taking?
A: Averaged over 12 reviews: usefulness 3.0/5, overall 2.7/5.
Q: Which faculty teaches CHEM2521, and when is it offered?
A: CHEM2521 is taught by the Faculty of Science. Check the official handbook for the current year.
USYD Wall is an independent student community and is not affiliated with University of Sydney.