Identify the two compounds that are not constitutional isomers having the molecular formula C4H8O.

Bonus question For the following reaction identify the acid and the base and predict the position of the equilibrium.

Rank the following compounds in order of decreasing strength of intermolecular forces.

Which of the following violates the rules for curved arrows? 

For the following acid-base reaction, predict which side of the equilibrium is favored. 

Bonus question Aspartic acid, an amino acid, has the structure shown below. Which of the following best explains which proton is most acidic?

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

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

Which statement best describes a resonance hybrid?

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