Ответ:
1) H2SO4+ZnS=ZnSO4+H2S
2) Zn(NO3)2+2NaOH=Zn(OH)2+2NaNO3
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Ответ:
1) H2SO4+ZnS=ZnSO4+H2S
2) Zn(NO3)2+2NaOH=Zn(OH)2+2NaNO3