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, Ohio â Hudson is a city in Summit County, Ohio, United States. The population was 22,262 at the 2010 census and it is a suburban community in the Akron Metropolitan Statistical Area and the larger ClevelandâAkronâCanton Combined Statistical Area, the 15th largest Combined Statistical Area in the United States.