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.
The Hudson unit is the Departmentâs third specialized reentry unit, following units that opened at Orleans Correctional Facility in Western New York in August 2007 and October 2008 for Erie and Monroe County releases, respectively.