1)Mg + HCl = MgCl2 + H2
2)HCl + KOH → KCl + H2O
3) AgNO3 + HCl → AgCl + HNO3
4)CuO + 2HCl → CuCl₂ + H₂O
CuO + 2H⁺ + 2Cl⁻ → Cu²⁺ + 2Cl⁻ + H₂O
CuO + 2H⁺ → Cu²⁺ + H₂O
1)Mg + HCl = MgCl2 + H2
2)HCl + KOH → KCl + H2O
3) AgNO3 + HCl → AgCl + HNO3
4)CuO + 2HCl → CuCl₂ + H₂O
CuO + 2H⁺ + 2Cl⁻ → Cu²⁺ + 2Cl⁻ + H₂O
CuO + 2H⁺ → Cu²⁺ + H₂O