r/AskChemistry is a subreddit with 55k members. The community frequently discusses chemistry, reaction, acid, chemicals, and reactions, and the most common flair used is general, process chem, inorganic/phyical chem, biochem, and pizza toppings.
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
: "When a piece of metal snaps under load, what happened?"
9 posts
#2
Process Chem
: "Why is H2O shaped like that?"
5 posts
#3
Inorganic/Phyical Chem
: "Can any one here suggest me good yt channels to understand undergrad level chemistry (organic, inorganic , physical, quantum chemistry )"
4 posts
#4
Biochem
: "what reactions are happening here?"
2 posts
#5
Pizza Toppings
: "What is wrong with us German speaking humans and why do we always have the need to explode pickles with fluorine compounds?"
1 post
#6
Thomas the Toxic Tank Engine
: "Is there a name for the effect or the area where a strong acid and a base meet, they interact but then form kind of a neutral zone of what I assume is byproduct or a liquid/powder crust?"
1 post
#7
Theoretical Chem
: "How does an cryogenic environment change processes and reactions?"
1 post
#8
Medicinal Chem
: "Lidless bottle of 91% Isopropyl alcohol- How long will it remain a usable antiseptic?"
1 post
#9
Chem Engineering
: "Will a sulfuric acid ionization reaction dissolve through copper?"
1 post
#10
Pharmaceutical
: "Mixing the e inside electrolyte?"
1 post
Member Growth in r/AskChemistry
Yearly
+18k members(50.4%)
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Last updated: November 5, 2026