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.
Livingston County is a county located in the U.S. state of Michigan. As of the 2010 census, the population was 180,967. The county seat and most populous city is Howell. The county was set off in 1833, but for three years remained a part of Shiawassee and Washtenaw counties. It was organized in 1836. As one of Michigan's Cabinet counties, a group of counties whose names honor members of President Andrew Jackson's Cabinet, it is named after former U.S. Secretary of State Edward Livingston. Livingston County is included in the Detroit-Warren-Dearborn, MI Metropolitan Statistical Area.