Phosphoric acid is a triprotic acid. Write the ionization equation(s) and circle any species that are amphoteric.

 and are the amphoteric species.

Explanation:

Phosphorus is a non-metallic element belonging to Group 5 of the Periodic table. As a triprotic acid (i.e an acid that has three dissociable protons that undergo stepwise ionization) . Phosphorus reacts vigorously with hot water to form tetraoxosulphate(V) acid.

i.e

SO;

As a triprotic acid;

The ionization equations are as follows:

NOTE: Instead of the amphoteric species  to be circle as instructed , due to the fact that we are using the LaTex Editor ; we will just need to let them be in bold format which will differentiate them from the rest.

Thus;  and are the amphoteric species.