Ammoniagasand oxygengas react to form nitrogen gas and watervapor. Suppose you have 3mol of nh3 and 7mol of o2 in a reactor. Suppose as much as possible of the NH3 reacts.
How much will be left?

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.

the answer is a! (2.9 x 10^-18 j) hope i could someone. : )

window cleaner is ammonia dissolved in water. this is an example of a