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.
Directions. The North County Regional Center is located at: 325 South Melrose Dr.Vista, CA 92081 View Larger Map From Interstate 5 Exit the freeway at Highway 78 and drive East approximately 7 miles. Exit Highway 78 at Melrose Drive and turn right. Proceed approximately 1/4 mile to County Complex Way. Turn right into the parking lot.