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.
Westmead is a suburb of Sydney, in the state of New South Wales, Australia. Westmead is 26 kilometres (16 mi) west of the Sydney central business district, in the local government areas of the City of Parramatta and the City of Holroyd; and is part of the Greater Western Sydney region.estmead is bounded by the Parramatta River, Toongabbie Creek and Finlayson Creek in the north. On the east it is bounded by Parramatta Park, the Parramatta Golf Club, Amos Street and Good Street. The southern boundary is the Great Western Highway.