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.
subscripts is called the chemical formula of the substance. The formula of a simple substance is obtained by writing the symbol of the element and. indicating the number of atoms in a molecule of the substance by a subscript. For example, a molecule of hydrogen contains two atoms. Hence, hydrogen is represented by the formulaH2. A molecule of ozone contains three atoms of oxygen.