Question

Br2 →HBr →MgBr2 И S→SO3→H2O4→Na2SO4 Помогите

Answer 1

Br2 →HBr →MgBr2
1) Br2+H2=2HBr
2) 2HBr+Mg=MgBr2+H2

S→SO3→H2SO4→Na2SO4
1) 2S+3O2=2SO3
2) SO3+H2O=H2SO4
3) H2SO4+2NaOH=Na2SO4+2H2O