Texas Longhorn cattle can efficiently process many grassland products which go untouched by other breeds. Examples include huisache, huajillo brush, willows, mesquite, yucca, and many other esoteric strains of substandard fare.
chemical formula a combination of symbols used to express the chemical components of a substance. empirical formula a chemical formula that expresses the proportions of the elements present in a substance.
A molecular formula tells only the numbers of atoms of each element in a molecule of the compound. A condensed structure shows all atoms, but it omits the vertical bonds and most or all of the horizontal single bonds. For example, both ethanol and dimethyl ether have the molecular formula #C_2H_6O#.