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 chemical formula is a combination of elemental symbols and subscript numbers that is used to show the composition of a compound. Depending of the type of compound that the formula represents, the information that it provides will vary slightly.