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.
Hudson, Colorado. The Town of Hudson is a Statutory Town in Weld County, Colorado, United States. The population was 2,356 at the 2010 census. A post office called Hudson has been in operation since 1883. The town derives its name from the town company, Hudson City Land and Improvement Co.