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 representation of the elements in a molecule. Although the word formula connotes an equation, chemical formula are not to be confused with chemical equations, which describe multiple molecules at once.olecular Formula. The molecular chemical formula uses subscripts to count the number of elements in a molecule, e.g. H2O, where the 2 is a subscript. One variant is to clump element symbols together in the order they appear in the molecule, e.g. CH3-O-CH3 or CH3OCH3, instead of C2H6O.