What is the best explanation for the fact that Styrofoam will not dissolve in water, but Styrofoam will dissolve in acetone? 1.styrofoam is polar and water is nonpolar

2.styrofoam is nonpolar and water is polar

3.Styrofoam is polar and water is polar

4.styrofoam is nonpolar and water is nonpolar

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.