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

Astudent made the lewis dot diagram of a compound as shown. mg is written with two dots shown on its top. an o is written on each side of mg. each o has six dots around it. an arrow is shown from one dot on mg toward the vacant space around the o on the right. another arrow is shown from the other dot on mg toward the vacant space around the o on the left. the title of the art is students lewis dot model. what is the error in the lewis dot diagram? an o atom should transfer all its six electrons to mg because the formula is mgo. both electrons of mg should be transferred to one o atom because the formula is mgo. the electrons should be transferred from each o atom to mg because mg has fewer electrons. the number of dots around mg should be four because it has to transfer two electrons to each o.