For which of the following reactions will a decrease in pressure shift the equilibrium to the left? A). 2A2 (g) + B2 (g) --> 2A2B (g)

B). 2AB (g) --> A2 (g)+ B2 (g)

C). 2A2F3 (g) --> 4A (g) + 3F2 (g)

D). 2B (s) + 2HA (aq) --> 2BA (aq) + H2 (g)

Which produce would best increase the amount of heat energy that is actually gained by calorimeter b

What is the mass of 0.46 mil of mgcl2

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.