What compounds are produced when you heat CuO and sugar? I'm wondering on what compounds are produced when you heat CuO and sugar?
If there is enough copper oxide, all you obtain is metallic copper, $\ce{CO2}$ and water. This mixture ($\ce{CuO}$ + organic substance) was the standard way of analyzing any new organic substance in the $19$th century. The formula of the compound was derived from the weight of $\ce{CO2}$ and $\ce{H2O}$ collected. This is is still a standard question to be solved in high school chemistry courses all over the world.