Classify each species as either a Bronsted-Lowry acid, Bronsted-Lowry base, or as amphiprotic. Select the single best answer for each part.
HSO_4^- ?
SO_4^2- ?
H_3PO_4
HSO4^- : Bronsted-Lowry acid
SO4^2- : Bronsted-Lowry base
H3PO4 : Bronsted-Lowry acid