What is the structural formala
for 2, ethyl-2-3 dimethyl pent-3-yne​

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.

How does climate change cause the ocean's thermohaline current to slow down?

Which organism develops breathing organism develops breathing organs from pharyngeal arches? shark, spider, sea star, sea horse