The polarity of the solvents increases in the following order: cyclohexane < THF < acetone. Explain how solvent polarity affects the isomerization rate? (Hint: What affect will solvent polarity have on the resonance structures of 4A4N? How will this affect the N=N bond?)

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.