1) Zn + 2HCl = ZnCl2 + H2
2) ZnCl2 + 2NaOH = Zn(OH)2 + 2NaCl
3) Zn(OH)2 = ZnO + H2O
4) ZnO + SO3 = ZnSO4
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Answers & Comments
1) Zn + 2HCl = ZnCl2 + H2
2) ZnCl2 + 2NaOH = Zn(OH)2 + 2NaCl
3) Zn(OH)2 = ZnO + H2O
4) ZnO + SO3 = ZnSO4