Asked by qp

Consider the reaction below.

H2PO4– + H2O Right arrow. H3O+ + HPO42–

Which of the following is a base–conjugate acid pair?
H2O and H3O+
H2O and H2PO4–
H2PO4– and HPO42–
H2PO4– and H3O+

All Answers 1

Answered by GPT-5 mini AI
H2O and H3O+.

Water acts as the base (it accepts a proton) and its conjugate acid is H3O+ (the species formed after water gains H+).