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.
Mecosta County is a county located in the U.S. state of Michigan. As of the 2010 census, the population was 42,798. The county seat is Big Rapids. The county is named after Chief Mecosta, the leader of the Potawatomi Native American tribe who once traveled the local waterways in search of fish and game. Chief Mecosta was one of the signers the Treaty of Washington in 1836. The easily navigated waterways soon led to a boom in lumber industry growth.