Be sure to answer all parts. dinitrogen difluoride, n2f2, is the only stable, simple inorganic molecule with an n=n bond. the compound occurs in cis and trans forms. (a) select which of the molecular shapes of n2f2 correspond to the cis and trans form of n2f2. i h5a ii h5b iii h5c cis-dinitrogen fluoride: i ii iii trans-dinitrogen fluoride: i ii iii (b) predict the polarity, if any, of each form. cis = polar; trans = polar cis = polar; trans = nonpolar cis = nonpolar; trans = polar cis = nonpolar; trans = nonpolar