Ammonia nh3 gas and oxygen o2 gas react to form nitrogen n2 gas and water h2o vapor. Suppose you have 2.0 mol of nh3 and 9.0 mol of o2 in a reactor. Calculate the largest amount of n2 that could be produced.

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.