1. what is the correct lewis structure for nitric acid, hno3, including the formal charges? a. i b. ii c. iii d. iv e. none of these 2. the bond between carbon and hydrogen is best described as a. nonpolar covalent b. polar covalent c. ionic d. coordinate covalent e. none of these. 3. which of the following structures have carbon with sp2 hybridization state? a. i and ii b. iii and iv c. i and iii d. ii and iv e. i and iv