1) SO3 + H2O = H2SO4
2) H2SO4 + Zn = ZnSO4 + H2
3) ZnSO4 + 2NaOH = Zn(OH)2 + Na2SO4
Zn(OH)2 = ZnO + H2O
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Answers & Comments
1) SO3 + H2O = H2SO4
2) H2SO4 + Zn = ZnSO4 + H2
3) ZnSO4 + 2NaOH = Zn(OH)2 + Na2SO4
Zn(OH)2 = ZnO + H2O