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.
Most of Hudson County, apart from West Hudson, was part of Bergen Township, which dates back to 1661 and was formally created by an act of the New Jersey Legislature on February 21, 1798, as one of the first group of 104 townships formed in New Jersey, while the area was still a part of Bergen County.