My new lockdown hobby was doing #puzzles and it has continued into "normal times". I find the algorithmic nature of them therapeutic. Does anyone have good recommendations for #SciencePuzzles? Or puzzles with a #science #SciencyArt theme? I did the #LHC #ATLAS detector earlier this year which was great. A bit late for the #Higgs10 celebrations but hey ho!

Gas: Hydrochloric acid, Nitric acid, ...
Liquid: Sulfuric acid, Formic acid, ...
Solid: Phosphoric acid, Phosphorous acid, ...

Gas: Ammonia, ???
Liquid: ???
Solid: NaOH, KOH, ...

Can you,

a) Fill in the missing part? (a pure neutral Brønsted–Lowry base that is liquid at room temperature/pressure and has no more than one carbon in it)

b) Find a similar but gaseous one other than Ammonia?

:>

#SciencePuzzles
#Chemistry