Please provide short answers as to what they should do or why they have these observations. a) 'I think my separatory funnel is broken. I opened the stopcock to drain the layers and nothing happened.' b) 'I added a second volume of ether to the separatory funnel for my second extraction, but I see only one layer.' c) 'I forgot which layer is ether and which is H2O.' or 'I can't figure out which layer is aqueous.'

Ionic compounds are made of ions, and yet the overall charge of an ionic compound is neutral. why?

The excretory system,need answers for all: )

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.