HCl + NaOH= NaCI +H₂OH⁺ + Cl⁻ + Na⁺ + OH⁻= NaCI +H₂OH⁺ + OH⁻= H₂O2HCI + Na₂CO₃= 2NaCI + CO₂↑+ H₂O2H⁺ + 2CI⁻ + 2Na⁺ + CO₃²⁻= 2Na⁺ + 2CI⁻ + CO₂↑+ H₂O2H⁺ + CO₃²⁻= CO₂↑+ H₂O2HCI+CuO=CuCI₂+H₂O2H⁺ + 2 CI⁻ +CuO=Cu²⁺+ 2CI⁻+H₂O2H⁺ +CuO = Cu²⁺+H₂O4HCI+Cu₂O= 2H[CuCI₂]+H₂O4H⁺ + 2CI⁻+Cu₂O= 2H⁺ +2[CuCI₂]⁻+H₂O2HCI+ MgO=MgCI₂ + H₂O2H⁺ + 2CI⁻ + MgO=Mg²⁺ + 2CI⁻ + H₂O2H⁺ + MgO=Mg²⁺ + H₂O2NaOH + Pb(NO₃)₂=2NaNO₃+Pb(OH)₂↓2Na⁺ + 2OH⁻ + Pb²⁺ +2 NO₃ ⁻= 2Na⁺ + 2NO₃⁻+Pb(OH)₂↓ 2OH⁻ + Pb²⁺ = Pb(OH)₂↓Pb(NO₃)₂+ Na₂CO₃= 2NaNO₃ + PbCO₃↓Pb²⁺ + 2NO₃⁻+ 2Na⁺ +CO₃ ²⁻= 2Na⁺ + 2NO₃⁻ + PbCO₃↓Pb²⁺ +CO₃ ²⁻= PbCO₃↓2KNO₃ +t = 2KNO₂ +O₂