Question

Помогите 3 сделать срочно 20 баллов

Answer 1

S + Zn = ZnS

ZnS + 2HCl = ZnCl2 + H2S

2H2S+ 3O2 = 2SO2 + 2H2O

2SO2 + O2 = 2SO3

SO3 + H2O = H2SO4

H2SO4 + 2NaOH = Na2SO4 + 2H2O

Answer 2

1)Zn + S = ZnS

2) ZnS+2HCl=H2S+ZnCl2  

3) 2H2S +3O2 =(t)= 2H2O+2SO2

4) 2SO2+O2=2SO3

5) SO3+H2O=H2SO4

6) 2NaOH+H2SO4=Na2SO4+2H2O