r/AskChemistry is a subreddit with 50k members. The community frequently discusses chemistry, reaction, acid, chemicals, and reactions, and the most common flair used is general, inorganic/phyical chem, organic chem, practical chemistry, and pharmaceutical.
We are chemists and scientists who help demystify molecular behavior and apply discipline to naughty, wayward reactions, with a dash of wit & humor.
From basic principles to advanced topics, we welcome discussion of all levels of chemistry & related fields (eg. pharmacology, biology, physics).
Share links, images, and citations to enhance discussions.
Expect science-fueled answers, colorful discussion, and perhaps a touch of electron-bullying.
Popular Topics in r/AskChemistry
#1
Chemistry
290 posts
#2
Reaction
18 posts
#3
Acid
15 posts
#4
Chemicals
14 posts
#5
Reactions
11 posts
#6
Lab
10 posts
#7
Organic
10 posts
#8
Water
9 posts
#9
Help
7 posts
#10
Metal
7 posts
Flair Used in r/AskChemistry
#1
General
: "What is an experimental finding in chemistry that is still utterly perplexing and pretty much nobody outside of chem talks about?"
32 posts
#2
Inorganic/Phyical Chem
: "Is this oxidation of copper? Why only parts of it? It’s on the cold water pipe but not the hot water pipe - any reason for that? Does it mean it is deteriorating? Water tank/heater.. asking just from curiosity really, not concerned."
18 posts
#3
Organic Chem
: "Are all VOCs "bad"?"
12 posts
#4
Practical Chemistry
: "Is there any reason why this wouldn't work?"
7 posts
#5
Pharmaceutical
: "Update on asking for help with modifying my Adderall to make it not adderall while maintaining chirality"
5 posts
#6
Biochem
: "Why does DNA have Thymine while RNA has Uracil?"
4 posts
#7
Industrial Chem
: "Sulfamic acid pits stainless steel?"
3 posts
#8
Medicinal Chem
: "This garlic crusher left a gray smudge on my finger. What could the material be ?"
3 posts
#9
Intellectual Property
: "Could C2O exist under any circumstance?"
1 post
#10
Ball-N-Stickness
: "I acquired a new molecule pin at my 4th of July celebration"
1 post
Member Growth in r/AskChemistry
Yearly
+16k members(48.8%)
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Last updated: September 1, 2026