Question

3. Решите уравнения:
1)S+Zn=
2) ZnS+O2 =
3) SO2+ 02 =
4)SO3+H20=
5)H2SO4 + BaCL2=

Answer 1

S + Zn => ZnS

ZnS + O2 => ZnO + SO2

SO2 + O2 => SO3

SO3 + H2O => H2SO4

H2SO4 + BaCl2 => HCl + BaSO4