Copper sulphate was electrolysis for 5 mins using copper electrodes and the below info shows the mass of the anode and of the cathode for electrolysis and after electrolysis. calculate the amount of copper deposited Before electrolysis in copper sulphate:-

Anode: 1.16g

Cathode: 1.28g

After electrolysis in copper sulphate :-

Anode: 0.85g

Cathode: 1.57g

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.