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Question
Identify A to E and also explain the reactions involved.
Solution
A = \[\ce{Cu}\]
B = \[\ce{Cu(NO3)2}\]
C = \[\ce{[Cu(NH3)4]}\]
D = \[\ce{CO2}\]
E = \[\ce{CaCO3}\]
F = \[\ce{Cu2[Fe(CN)6]}\]
G = \[\ce{Ca (HCO3)2}\]
\[\ce{CuCO3 -> CuO + CO2}\]
\[\ce{CuO + CuS -> \underset{(A)}{Cu} + SO2}\]
\[\ce{Cu + 4HNO3 (Conc) -> Cu \underset{(B)}{(NO3)2} + 2NO + 2H2O}\]
\[\ce{\underset{(B)}{Cu^2+} + NH3 -> \underset{(C)}{[Cu(NH3)4]}}\]
\[\ce{Ca(OH)2 + \underset{(D)}{CO2} -> \underset{(E)}{CaCO3} + H2O}\]
\[\ce{CaCO3 + CO2 + H2O -> Ca(HCO3)2}\]
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