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1)Zn(OH)2 + H2S -->ZnS + 2H2O
2)ZnO + H2S-->ZnS + H2O
3)Zn + H2S-->ZnS + H2
4)Zn + S-->ZnS
5)ZnCl2 + H2S-->ZnS + 2HCl
6)BaS + ZnSO4-->BaSO4(STRZAŁKA DO DOŁU) + ZnS
7)MgS + Zn(OH)2--> Mg(OH)2 (STARSZLKA DO DOŁU) + ZnS