Step-by-step explanation:
A bronsted lowry acid is any species that can donate a hydrogen proton (H+) to another molecule.
A bronsted lowry base is any species that can receive a hydrogen proton (H+) from another molecule.
a. hbr h2o --> h30+ br-
The Bronsted-Lowry acid is HBr
It's conjugate base is Br-
The Bronsted-Lowry base is H2O
It's conjugate acid is h30+
b. NO-2 H2o --> HNO2 OH-
The Bronsted-Lowry acid is H2O
It's conjugate base is OH-
The Bronsted-Lowry base is NO-2
It's conjugate acid is HNO2