Brass is a homogeneous mixture (solid solution) of copper and zinc. Again each metal by itself is a pure substance. Only when they are mixed are they a homogeneous mixture (or solid solution). Heterogeneous Mixtures Heterogeneous mixtures are not uniformly mixed on an atomic or molecular level.
Penrose is one of the small villages in the Southern Highlands, located between Bundanoon and Marulan.
Penrose, Colorado. Penrose is an unincorporated town and a census-designated place (CDP) in Fremont County, Colorado, United States. The population was 3,582 as of the 2010 census. The Penrose Post Office has the ZIP code 81240.