Ответ:
Объяснение:
H2S + Hg= HgS+ H2
H2S + Cr = Cr2S3 + H2
H2S + Ca = CaS+ H2
CaSO4 + Ba= BaSO4 + Ca
CaSO4 + Zn= ZnSO4 + Ca
CaSO4 + Ag= Ag2SO4 + Ca
CaSO4 + Sn= Sn + CaSO4
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Ответ:
Объяснение:
H2S + Hg= HgS+ H2
H2S + Cr = Cr2S3 + H2
H2S + Ca = CaS+ H2
CaSO4 + Ba= BaSO4 + Ca
CaSO4 + Zn= ZnSO4 + Ca
CaSO4 + Ag= Ag2SO4 + Ca
CaSO4 + Sn= Sn + CaSO4