2Zn + O2 = 2ZnO
ZnO + H2SO4 = ZnSO4 + H2O
ZnSO4 + Ca = CaSO4 + Zn
2Ca + O2 = 2CaO;
CaO + H2O = Ca(OH)2;
Ca(OH)2 + H2CO3 = CaCO3 + 2H2O;
CaCO3 (t)= CaO + CO2
CO2 + H2O = H2CO3
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Answers & Comments
2Zn + O2 = 2ZnO
ZnO + H2SO4 = ZnSO4 + H2O
ZnSO4 + Ca = CaSO4 + Zn
2Ca + O2 = 2CaO;
CaO + H2O = Ca(OH)2;
Ca(OH)2 + H2CO3 = CaCO3 + 2H2O;
CaCO3 (t)= CaO + CO2
CO2 + H2O = H2CO3