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What is the direction of equilibrium when acetylene (C2H2) reacts with ethoxide (CH3CH2O-) in an acid-base reaction?  

Consider the shown proton on each compound and identify which is most acidic.

Determine the formal charge on each atom as indicated for the structure below.

The lone pairs of electrons on the nitrogen atom in the following compound are located in which orbital?

What is the hybridization state and approximate bond angle around nitrogen in the following compound?

Bonus question Caffeine has the following structure. Identify the hybridization state and molecular geometry at the indicated atoms.

The C—C sigma bond in ethyne (H—C≡C—H) results from the overlap of which orbitals?

Delocalization of electrons over two or more atoms ________ a molecule.

Identify the resonance structure indicated by the curved arrows.

For the following acid-base reaction, predict the position of the equilibrium and identify the most stable basic compound.