Complete and balance the precipitation reaction of K3PO4(aq) + MgCl2(aq)

2K3PO4(aq) + 3MgCl2(aq) → Mg3(PO4)2(s) + 6KCl(aq)

Explanation:

K3PO4(aq) + MgCl2(aq)→ Mg3(PO4)2(s) + KCl(aq) (unbalanced)

2K3PO4(aq) + 3MgCl2(aq) → Mg3(PO4)2(s) + 6KCl(aq)

Reactants:       Products:

K: 3x2=6           K: 1x6=6

P: 1x2=2            P: 1x2=2

O: 4x2=8          O: 4x2=8

Mg: 1x3=3        Mg: 3x1=3

Cl: 2x3=6         Cl: 1x6=6

Therefore the equation is balanced. Hope this helps.

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