Question

Срочно!
H2S-K2S-PbS-SO2-SO3-MgSO4

Answer 1

H2S + KOH = K2S + H2O

K2S + Pb(No3)2 = PbS + KNO3

PbS + O2 = PbO + SO2

SO2 + O2 = SO3

SO3 + Mg(OH)2 = MgSO4 + H2O

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Answer 2

H2S-K2S-PbS-SO2-SO3-MgSO4

H₂S+KOH=K₂S+H₂O

K₂S+Pb(NO₃)₂=PbS↓+2KNO₃

2PbS+3O₂=2SO₂↑+2PbO

2SO₂+O₂=2SO₃

SO₃+MgO=MgSO₄