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.
Bothwell (pop ~400) is a picturesque town on the banks of the Clyde River in central Tasmania. A large number of Bothwell's buildings date from the early 1800's, and 52 of them have either been classified or registered by the National Trust.