Yes, if you look at the molecular structure of ethanol, or even just evaluate the name you should be able to predict that ethanol will burn, thus producing energy.
Ethanol has a pretty simple molecular structure. The important part is the Oxygen single bonded to a Hydrogen at the end of the molecule. This O-H bond classifies ethanol as an alcohol. You can also tell that ethanol is an alcohol because both end with the same letters (ol). From everyday experience you will probably know that alcohol is flammable and burns readily. Thus, ethanol will burn and produce energy.
I hope this helps!
