Notice that "PO4" appears in two different places in this

Last updated: 7/31/2022

Notice that "PO4" appears in two different places in this chemical equation. PO3 is a polyatomic ion called phosphate. What number should be placed in front of Na3PO4 to give the same total number of phosphate ions on each side of the equation? ?Na3PO4 + MgCl2-Mg3 (PO4)2 + NaCl