Question

When acid (X) reacts with base (Y) to produce Mg3(PO4)2- what are X and Y

Answer 1

Mg3(PO4)2 - Mg²⁺ forms base

PO4³⁻ forms acid

Ma(OH)2 is a base(Y).

H3PO4 is an acid(X).

3Mg(OH)2 + 2H3PO4 ---> Mg3(PO4)2 + 3H2O