Question

(C) Complete the equation.
(1) 2cu = H2O+ CO2 +, 02,_____CuCO2
(2) s+o2
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Answer 1

Answer:

• equation 2Cu+H2O+CO2+O2=Cu(OH)2=CuCO3. Moist air. This equation refers to the corrosion of copper. When copper is exposed to moist air it acquires a dull green coating of copper hydroxide [ Cu[OH]2] and copper carbonate CuCO3.
• reactants (S, O 2) and by products (SO 2)

O2 + S → SO2

O2 + H2 + S → H2O + SO2