you heat a liquid and record that the liquid turns to Vapor at 100% which physical property does this demonstrate

Answer; carbon monoxide (co);

It is a mixture. simply put, a compound must be pure, that is, of only one chemical structure and composition. a mixture is made of different chemical substances (i.e. elements, molecules, compounds) that are not chemically bonded to each other, but instead physically grouped together, as in the case of gasoline (a homogeneous solution).