Which of the following might a chemist choose to study?
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A. Glacier movement in Alaska
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B. Better ways to recycle plastics
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C. The vibrations in bridges caused by big trucks
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D. The effects of hurricanes on turtle populations
SUB

Particles vibrate in a rigid structure and do not move relative to their neighbors.

How many moles is 14.5 cm^3 of platinum? the density of platinum is 21.45 g/cm^3.

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.