Which of the following molecules has exactly three equivalent resonance forms?

In the dominant Lewis structure for chlorine trifluoride, ClF3, how many nonbonding electron pair(s) is/are on the central atom?

For the nitrite anion (NO2-), which of the following statements is true?

In the molecular orbital description of the F2− ion,  the bond order is             . Hint:  Fill in the MO diagram for the valence electrons, assuming the four core electrons fill the σ1s and σ*1s molecular orbitals. Hint:  Bond order = 1/2 [# bonding electrons – # antibonding electrons]

In the molecular orbital description of the C2 ion, the bond order is             . Hint:  Fill in the MO diagram for the valence electrons, assuming the four core electrons fill the σ1s and σ*1s molecular orbitals. Hint:  Bond order = 1/2 [# bonding electrons – # antibonding electrons]

Capsaicin (8-methyl-N-vanillyl-6-nonenamide) is an active component of chili peppers, which produces a sensation of burning in any tissue with which it comes into contact. In the Lewis structure for capsaicin shown below, what are the approximate bond angles for the angles labeled b and c?

Based on its Lewis symbol, how many covalent bonds is phosphorous (P) likely to form?

In the molecular orbital description of the N2+ ion,  the bond order is              . Hint:  Fill in the MO diagram for the valence electrons, assuming the four core electrons fill the σ1s and σ*1s molecular orbitals. Hint:  Bond order = 1/2 [# bonding electrons – # antibonding electrons]

For O3, the formal charge on the central atom is _____. Hint: Draw the dominant Lewis structure before determining formal charge.

For the nitrate anion (NO3-), which of the following statements is true?