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 has three communities on the list of the 100 cities (population 5,000 and up) with the highest percent of foreign-born residents: West New York (65.2%), Union City (58.7%), and Guttenberg (48.7%) Hudson County has the smallest proportion of persons over age 65 in New Jersey.