Quartz is made of silicon and oxygen joined in a network arrangement that is similar to:

Arteries and veins are joined by a network of_______

The covalency of silicon and oxygen in SiO_(2) respectively

When acidified copper sulphate solution is electrolysed oxygen is obtained at the anode. What arrangements are to be made for this? Find the element deposited at the cathode.

The silicon-oxygen bonds in SiO_(2) are best described as :

The arrangement of electrons in Oxygen is