The sigma bond that is part of C=N in the following compound results from the overlap of which orbitals? 

What is the correct Lewis structure for the molecule shown in the box below?

Bonus question For the following reaction identify the acid and the base and predict the products.

What is the order of decreasing bond length for a C-C bond composed of the following molecular orbitals? 

For the following reaction, respectively identify the Brønsted-Lowry acid and the conjugate base.

Which of the indicated carbon atoms in the following compound have an sp2 hybridization state?

For the following compound identify the indicated lone pairs as localized or delocalized.

Which of the following examples violates the rules for curved arrows?

Ar, K+, and Cl— have equal numbers of electrons, and are considered isoelectronic. Select the correct ground state electron configuration for them.

Bonus question Which of the following best explains if NaNH2 is a suitable reagent to deprotonate the compound shown below?