It is a mixture Beer is a homogeneous mixture (liquid solution) of H2O, C2H5OH, and a few other substances. (There is no beer molecule. The molecule that gives beer its inebriating property is ethanol.)
If you get to addicted to it It would be a substance because you would be addicted to it ( like being addicted to a drug) . If your not addicted and drink beer to have a good time it is mixture.
