Consider (again) the pf5molecule.
(a) what phosphorous atomic orbitals can enter into bonding with the fluorine atoms and how do they transform?
(b) consider the z-axis for each of the fluorines to be along the p-f bond, that is, the fluorine 2pzorbitals are the ones involved in bonding. what is the total, reducible representation corresponding to these orbitals?

a rain shadow is a dry region of land on the side that is protected against the prevailing winds of a mountain range. the prevailing winds are the winds that occur most of the time in a particular place of the earth

prevailing winds carry air toward the mountain range. as the air rises up over a mountain range, the air cools, water vapor condenses, and clouds form. on this side of the mountains, called the windward side, precipitation falls in the form of  rain  or snow. this dry air produces a  rain shadow.

i believe the answer is three water molecules