Which of the following pairs of molecules represent the combination of a Bronsted-Lowry acid and its conjugate base?
Cu/Cu
++
N
2
/NH
3
HC
2
H
3
O
2
/C
2
H
3
O
2
–
Al(OH)
3
/[Al(OH)
4
]
–
Pbl
2
/Pb
2+