Well, what I've heard, copper oxide and carbon at high temperature will make copper metal and CO2:
CuO2 + C = Cu + CO2
When lead oxide is heated with carbon, carbon dioxide and lead are formed as the products 2PbO+C -->CO2+2Pb
with water aswell it would become copper carbonate
Copper Carbonate when heated decomposes to give copper oxide and carbon dioxide.
It is possible for carbon dioxide and copper oxide to encourage a reaction to take place due to thermal composition. When calcium carbonate is heated, it decomposes and generates carbon dioxide and copper oxide.
Here are the equations for the thermal decomposition of copper carbonate (notice that a metal oxide is formed, just as it was with calcium carbonate): Copper carbonate → copper oxide + carbon dioxide CuCO3 → CuO + CO2
When copper is heated in oxygen, the compound formed is copper oxide.
When copper is heated, it undergoes oxidation and forms copper oxide as the main product. If the heating is carried out in the presence of oxygen, copper oxide (CuO) is formed. If the oxygen is limited, copper(I) oxide (Cu2O) can also be formed.
When lead oxide is heated with carbon, carbon dioxide and lead are formed as the products 2PbO+C -->CO2+2Pb
with water aswell it would become copper carbonate
Copper doesn't react with carbon dioxide at room temperature.
When malachite is heated, it decomposes into copper(II) oxide and carbon dioxide. The word equation for this reaction is: Copper(II) carbonate (malachite) → Copper(II) oxide + Carbon dioxide.
When copper sulfate is heated, it decomposes to form copper oxide and sulfur dioxide gas.
When copper carbonate is heated, it decomposes into copper oxide, releasing carbon dioxide gas. The remaining ionic compound is copper oxide (CuO).
Copper Carbonate when heated decomposes to give copper oxide and carbon dioxide.
This compound is the copper(II) oxide, CuO.
CuCO3 is bluish-greenish-white. If it is heated to a high enough temperature, it will decompose into Carbon Dioxide and Copper II Oxide, which is black.
GreenAdded:There are two copper oxides, differing in color:if it is black powder, then it is copper(II) oxide CuO (cupric, more common, as in the mineral 'tenoriet')if it is red powder, then it is copper(I) oxide Cu2O (cuprous oxide, as in mineral the 'cupriet' and it occurs in 'Benedict's test' on reducing sugars)