Chemistry, 04.09.2020 15:01, antcobra

If you drive a car to work, what fraction of the chemical energy of the gasoline ultimately ends up as heat?

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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.

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If you drive a car to work, what fraction of the chemical energy of the gasoline ultimately ends up...