2K + S = K2S
2KOH + H2S = K2S + 2H2O
K2SO4 + BaS = K2S + BaSO4(осадок)
6KOH + 3S = K2SO3 + 2K2S + 3H2O
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2K + S = K₂S
2KOH + H₂S = K₂S + 2H₂O
K₂SO₄ + 4C = K₂S + 4CO
K₂SO₄ + 4H₂ = K₂S + 4H₂O
2K + S = K2S
2KOH + H2S = K2S + 2H2O
K2SO4 + BaS = K2S + BaSO4(осадок)
6KOH + 3S = K2SO3 + 2K2S + 3H2O