For the following reaction sequence (it is not necessary to understand the chemistry) what significant change(s) would be expected by IR (ignoring C-H absorptions)? A. A peak around 2250 cm-1 would disappear and nothing new would appear. B. A peak around 1720 cm-1 would disappear and a new peak around 3300 cm-1 would appear. C. A peak around 2250 cm-1 would disappear and a new peak around 1720 cm-1 would appear. D. A peak around 2250 cm-1 would disappear and a new peak around 3300 cm-1 would appear. E. No change would be observed.

Select the correct text in the passage. which sentences describe examples of sustainable living? i live in an old apartment building downtown, but my company is based in an office park on the outskirts of the city. i drive an old car that needs to be replaced. i plan to buy a hybrid for better gas mileage, but for now i am able to carpool with a couple of friends from work. the drive to the office park is about 45 minutes each way, but we do get to work in a modern building. the architects just received a leed certification for the design.