Write the reaction equation: Mg-MgO-MgSO4-ZnSO4-ZnO-H20
2Mg + O2 = 2MgO is a combination reaction resulting in the formation of copper oxide.
MgO + 2HCl = MgCl2 + H2O – exchange reaction, the magnesium atom changes places with the hydrogen atom, forming a magnesium salt and water.
MgO + H2SO4 = MgSO4 + H2O – exchange reaction, the magnesium atom changes places with the hydrogen atom, salt and water are formed.
ZnO + MgSO4 = MgO + ZnSO4 – exchange reaction, the zinc atom changes places with the magnesium atom, forming magnesium oxide and zinc salt.
2ZnSO4 = 2ZnO + 2SO3 is a decomposition reaction, as a result of which zinc oxide and sulfur oxide are formed from the zinc salt.
ZnO + HCl = ZnCl + H2O – exchange reaction, the zinc atom changes places with the hydrogen atom, forming a zinc salt and water.