Given the equation si(s) + 2cl2(g) → sicl2(g) ? sicl2(l) + 687 kj, how much heat is produced when 106 g of cl2 react?

In water, a strong acid will break down into its component parts. a. completely b. partly c. never in water, a weak base will break down into its component parts. a. completely b. partly c. never

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.

Take a look at this dandelion. the yellow flower on the right is pollinated and the seeds on the left are transported by