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 is a village in Mecosta County in the U.S. state of Michigan. The population was 457 at the 2010 census. The village is within Morton Township. Mecosta Township, which is also in Mecosta county, is located several miles to the west.