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, Florida. Hudson is a census-designated place (CDP) located at the westernmost end of Pasco County, Florida, United States and is included in the Tampa-St. Petersburg-Clearwater, Florida Metropolitan Statistical Area. As of the 2000 census, Hudson's population was 12,765.