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.
2 Square Miles of City. Hudson, New York, is located on the east side of the Hudson River in Columbia County, 120 miles north of New York City, 45 miles south of Albany and 160 miles west of Boston. The city is surrounded by the town of Greenport to the north, east and south, and by the Hudson River to the west.