Explore the detailed and printable Map of Callahan County in Texas, USA. Callahan County Map shows the county boundaries, the county seat, major cities, highways, roads, rail network, airport, and point of interest. Maps of World Current, Credible, Consistent
Carbohydrates: The Monosaccharides. The term carbohydrate was originally used to describe compounds that were literally hydrates of carbon because they had the empirical formula CH 2 O. In recent years, carbohydrates have been classified on the basis of their structures, not their formulas.
Carbohydrates have the general molecular formula CH 2 O, and thus were once thought to represent hydrated carbon. However, the arrangement of atoms in carbohydrates has little to do with water molecules. Starch and cellulose are two common carbohydrates.