1) Mg + 2H₃PO₄ = Mg₃(PO₄)₂ + H₂
2Mg + 4H₃PO₄ = Mg₃(PO₄)₂ + 3H₂
2) Ba + 2HCl = BaCl₂ + H₂
Ba + 2HCl = BaCl₂ + H₂
1) Mg + 2H₃PO₄ = Mg₃(PO₄)₂ + H₂
2Mg + 4H₃PO₄ = Mg₃(PO₄)₂ + 3H₂
2) Ba + 2HCl = BaCl₂ + H₂
Ba + 2HCl = BaCl₂ + H₂