Que cantidad de impurezas tendrá un anillo de 14 kilates que pesa 15 gramos

This is a characteristic of the elements in the periodic table that shows a pattern. it may increase or decrease across or down the table.

Draw two cyclic constitutional isomers of cis-1

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.