Dibutyl phthalate is a plasticizer added to make brittle polymers softer and more flexible. Dibutyl phthalate can be prepared by the following two-step sequence. What are the structures of the intermediate and the dibutyl phthalate final product? (In the second step, assume the alcohol is in excess)

Which of the following describes a compound? (hint: carbon and oxygen bo a. a piece of pure carbon, containing only carbon atoms b. oxygen gas surrounding a solid piece of carbon c. a substance made of two oxygen atoms for each carbon atom carbon and oxygen atoms mixed without being bonded together