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?

Identify the Lewis base in the following reaction.  

Which atomic orbitals overlap to form the carbon-carbon σ and π bonding molecular orbitals of ethene, H2C=CH2  ,respectively?

For the structure shown in the box below identify two corresponding correct resonance structures.

Which of the following is easiest to deprotonate?