P4o10(s) = -3110 kj/mol h2o(l) = -286 kj/mol h3po4(s) = -1279 kj/mol calculate the change in enthalpy for the following process: p4o10(s) + 6h2o(l) → 4h3po4(s)

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.