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.
Population: 1,600. Rosebery is a mining town nestled 145 metres above sea level in the hills of western Tasmania. It is 300 kilometres north-west of Hobart and 200 kilometres south-west of Launceston. The locals, we are told, are very proud of the fact that they have the highest numbered postcode in Australia â 7470.