Select the best diene and dienophile for a diels–alder reaction, then show the product formed when the chosen diene and dienophile are heated together.

How are isotopes of the same chemical element alike? how are they different?

Which buffer would be better able to hold a steady ph on the addition of strong acid, buffer 1 or buffer 2? explain. buffer 1: a solution containing 0.10 m nh4cl and 1 m nh3. buffer 2: a solution containing 1 m nh4cl and 0.10 m nh3

How can carbon move from "land" to bodies of water? describe the way human impact has lead to increased levels of co2 in the atmosphere.