A 27.5 g piece of metal wire is heated, and the temperature changes from 20 °C to 64°C. The specific heat of the metal is 0.900 J/g.°C. How much energy was required
to heat the metal? (Show your work and include units on your final answer)

Pegmatites are igneous rocks in which the individual minerals are very large. typically, the minerals are all light-colored quartz, feldspar and muscovite. if you were given a black and white photograph of a pegmatite in a quarry (where the rock has been blasted and broken), what physical properties could you use to identify those three minerals in this hypothetical photo? describe each mineral and the specific diagnostic properties. be specific.