а)H2S + NaOH = NaHS + H2O
б)H2S + 2NaOH = Na2S + 2H2O
в)KHS + KOH = K2S + H2O
г)K2S + CuSO4 = K2SO4 + CuS
а)H2S + NaOH = NaHS + H2O
б)H2S + 2NaOH = Na2S + 2H2O
в)KHS + KOH = K2S + H2O
г)K2S + CuSO4 = K2SO4 + CuS