Question

Draw a neat Lewis structure for each of the following compounds. (Note: Both ionic and covalent types have been included.) Make sure your diagram clearly distinguishes the type of bonding. Label your structure as "ionic" or "covalent." If it is covalent, identify the single, double, and triple bonds, if present. (14 marks: 2 marks each) a) KBr b) CaCl, d) SİCİ. e) PF, f CS g) HCN

Answer 1

Lewis structures (a) KBr KBr is an ionic compound. So, the bond between K^+ and Br^- is an ionic bond (b) CaCl_2 CaCl_2 is an ionic compound. So, the bond between Ca^2 + and Cl^- is an ionic bond. (e) Li_2 O Li_2 O is an ionic compound. So, the bond between Li^+ and O^2 - is an ionic bond. (d) SiCl_4 SiCl_4 is a covalent compound. So, the bond between Si and Cl is a covalent bond. The bonds between Si and Cl are single bonds. \r\n (e) PF_3 PF_3 is a covalent compound. So, the bond between P and F is covalent bond. Bonds between P and F are single bonds. (f) CS_2 CS_2 is a covalent compound and there is double bonds between C and S. (g) HCN HCN is a covalent compound with a triple bond between C and N and a single bond between H and C.