Question

HClO3 + NH3 --> NH4^+ + ClO3^- Which of the following is a base–conjugate acid pair?

H2O and H3O+
H2O and H2PO4–
H2PO4– and HPO42–
H2PO4– and H3O+

Answer 1

H20 and H30+ hope this help's

Answer 2

Step-by-step explanation:

According to Bronsted-Lowry, acids are the species that give hydrogen ions whereas bases are the species that accept hydrogen ions.

A base on accepting a hydrogen ion results in the formation of conjugate acid. On the other hand, an acid on donating hydrogen ion results into the formation of a conjugate base.

For example,
`HClO_(3) + NH_(3) \rightarrow NH^(+)_(4) + ClO^(-)_(3)`

Here,
`HClO_(3)` is the acid,
`NH_(3)` is the base,
`NH^(+)_(4)` is the conjugate acid and
`ClO^(-)_(3)` is the conjugate base.

Therefore, we can conclude that in the given chemical reaction
`NH_(3)` and
`NH^(+)_(4)` is the base-conjugate acid pair.