Question

What is the name for the acid formed from the po33- anion?

Answer 1

Hope this helps. :)

Phosphorous acid.

Answer 2

Answer:

Phosphorus acid

Explanation:

Hi, as can be seen it's an acid of phosphorus.

Looking the charge of the ion you can determine the valence number of the phosphorus: If there are 3 $O^-2$ (equal -6) and the total charge is -3 :

$P - 6 = -3$

$P = -3 + 6= 3$

So it's a phosphorus acid (valence=3) and you can see it's structure in the Figure