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, Iowa. Homefacts City Report. Hudson is located in Black Hawk County, IA. The population is 2,366, making Hudson the 5th largest city in Black Hawk County. There are 3 public schools in Hudson with an average Homefacts rating of B. The total crime rate for Hudson is very low, and there are 0 registered sex offenders residing in the city.