The balanced chemical equation is given below
3Mg(NO₃)₂(aq) + 2Na₃(PO₄)(aq) → Mg₃(PO₄)₂(s) + 6NaNO₃(aq)
Since we have aqueous solutions of magnesium nitrate and sodium phosphate are mixed together, forming solid magnesium phos phate and aqueous sodium nitrate, the chemical formulae of each compound is given below-
magnesium nitrate - Mg(NO₃)₂
sodium phosphate - Na₃(PO₄)
magnesium phos phate - Mg₃(PO₄)₂
sodium nitrate - NaNO₃
The balanced chemical equation is given below
3Mg(NO₃)₂(aq) + 2Na₃(PO₄)(aq) → Mg₃(PO₄)₂(s) + 6NaNO₃(aq)