2KOH+H₂SO₄²⁻=K₂SO₄²⁻+H₂O
2K+2OH⁻+2H+2SO₄²⁻=2K+2SO₄²⁻+H₂O
2OH+2H=2H₂O
OH+H=H₂O
BaS + H2O = Ba(OH)2 + H2S; S-- + H2O = HS- + OH-; HS- + H2O = H2S + OH-
1)2KOH+H2SO4=K2SO4+2H2O
2) 3Ca(OH)2 + 2H3PO4 = Ca3 + (PO4)2 + 6H2O
3) Ba(OH)2+H2S=BaS+2H2O
2KOH+H₂SO₄²⁻=K₂SO₄²⁻+H₂O
2K+2OH⁻+2H+2SO₄²⁻=2K+2SO₄²⁻+H₂O
2OH+2H=2H₂O
OH+H=H₂O
BaS + H2O = Ba(OH)2 + H2S; S-- + H2O = HS- + OH-; HS- + H2O = H2S + OH-
1)2KOH+H2SO4=K2SO4+2H2O
2) 3Ca(OH)2 + 2H3PO4 = Ca3 + (PO4)2 + 6H2O
3) Ba(OH)2+H2S=BaS+2H2O