Use the following balanced chemical equation to answer the question that follows. Show work using dimensional analysis, units, and round answer according to correct sig figs 2 Cu, S(s) + 3 O2(g) 2 Cu2O(s) + 2 SO2(g)
If 125 grams of oxygen gas react according to the equation above, how many grams of copper(l) oxide are expected to be formed?​

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.