For #HSO_4^(-)#, #NH_3(aq)#, and #NH_4^(+)# which species are Bronsted acids, and which are Bronsted bases?
As far as I can see (and you made me pull out my spex), I would amend
Note that I have of course assumed an aqueous solution for each of the acids and bases.
Everything looks perfect, except for (e) and (f)
You've pretty much nailed everything, but
In theory, they could probably donate/receive that extra proton, but the compounds they produce (
Hence, I'd say that
Hope that helps :)