Publishing as Benjamin Cummings. 3. A pure substance is classified as. â¢ matter with a specific and constant composition. â¢ an element when composed of one type of atom. â¢ a compound when composed of two or more. elements combined in a definite ratio. Pure Substances.
Hudson is a city in Lenawee County in the U.S. state of Michigan. The population was 2,307 at the 2010 census.
Nearly one hundred miles west of the state capital of Albany, Oneida County holds the upper reaches of the Mohawk River flowing eastward to the Hudson River. The County is also the site of streams flowing west to the Great Lakes, North to the St. Lawrence River, and South to the Susquehanna River.