1.)what is the hybridization of the n atom in this molecule? what are the hybridizations of the other 4 atoms indicated?

2.)a compound composed of only nitrogen and iodine is found to contain 3.55% nitrogen by mass. its empirical and molecular formulas are the same. what is the hybridization of the nitrogen atom in this compound?
hint:

3.)which of the following pairs of lewis diagrams is a correct pair of resonance structures?

i only
ii only
iii only
i and ii
i and iii
all three are correct

4.)which of the following is a true statement?

seo2 has two equivalent resonance structures.
xef4 obeys the octet rule.
the structure nobr (o is the central atom) is more stable than onbr (n is the central atom).
because of fluorine’s high electronegativity, the f-f bond is very polar.
none of the above statements is true.

5.)which of the following are correct statements about the valence–shell electron–pair repulsion (vsepr) model of bonding?

electron pairs orient themselves to give the smallest angles possible.
only bonding electron pairs are important in the vsepr model.
electron domain geometry in all cases describes the spatial geometry of the atoms in the molecule.

i only
ii only
iii only
i, ii, and iii
none of the above

6.)which of the following is non–planar?

so2
so3
so42−
no3−
bf3

need understanding these you