Помогите решить химическое уравнение NaOH+SO3 2NaOH+SO3 Na+H2S K2O+H2S KOH+H2S PbCL2+H2S
NaOH+SO3=NaHSO4 2NaOH+SO3=Na2SO4+H2O 2Na+H2S=Na2S+H2 K2O+H2S=K2S+H2O 2KOH+H2S=K2S+2H2O KOH+H2S=KHS+H2O PbCl2+H2S=PbS+2HCl
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