A chemist fills a reaction vessel with 6.74 atm hydrogen (H2) gas, 4.52 atm oxygen (O2) gas, and 8.21 atm water (H, gas at a temperature of 25.0°C. Under these conditions, calculate the reaction free energy AG for the following chemical reaction:
2H2(g) +0,(8) -2H,0(g)
Use the thermodynamic information in the ALEKS Data tab.

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.