The majority of elements on the periodic table are (metals, nonmetals, or metalloids).

257 grams h2o i think

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).