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.
Section 2 Chemical Formulas and Equations Key Concept Chemical formulas and chemical equations are used to show how atoms are rearranged to form new substances in a chemical reaction. â¢ Chemical formulas are a simple way to describe which elements are in a chemical substance.