Silicon dioxide has a formula of sio2 and forms a giant structure with each silicon atom bonded to 4 oxygen atoms and each oxygen atom bonded to two silicon atoms. 5.1 will its bonding be ionic or covalent? 5.2 use a dot and cross diagram to illustrate its bonding. 5.3 how many lone pairs are in each sio2 "unit"? 5.4 how many double bonds does it form? 5.5 give the formulae of 5.5.1 sulfuric acid 5.5.2 zinc nitrate 5.6 give the name of koh.