ZnCO3 (t)= ZnO + CO2
ZnO + H2SO4 = ZnSO4 + H2O
ZnSO4 + 2H2O = Zn(OH)2 + H2SO4
CuCl2 + H2SO4 = CuSO4 + 2HCl
CuSO4 + 2NaOH = Cu(OH)2 + Na2SO4
Cu(OH)2 (t)= CuO + H2O
CuO + C (t)= Cu + CO
2Cu + 4HCl + O2 = 2CuCl2 + 2H2O
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ZnCO3 (t)= ZnO + CO2
ZnO + H2SO4 = ZnSO4 + H2O
ZnSO4 + 2H2O = Zn(OH)2 + H2SO4
CuCl2 + H2SO4 = CuSO4 + 2HCl
CuSO4 + 2NaOH = Cu(OH)2 + Na2SO4
Cu(OH)2 (t)= CuO + H2O
CuO + C (t)= Cu + CO
2Cu + 4HCl + O2 = 2CuCl2 + 2H2O