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.
A Dutchess County Major Road | Taconic State Parkway. The Taconic State Parkway connects Westchester, Putnam, Dutchess and Columbia Counties in New York Stateâs Hudson Valley Region. It is approximately 105 mile scenic route and is listed on the National Register of Historic Places. President Franklin Roosevelt, himself a Duchess County resident, was instrumental in getting this project going.