Химиииияяяяя помогитеее
12. В 13. 2Na+2H2O = 2NaOH + H2 (газ( 2) NaOH + HCl = NaCl + H2O 3) NaCl + AgNO3 = NaNO3 + AgCl S + O₂ = SO₂ SO₂ + H₂O = H₂SO₃ H₂SO₃ + 2NaOH = Na₂SO₃ + 2H₂O