When treated with a Grubbs catalyst, compound A (under conditions of high dilution) is converted into one product (compound 1) with the molecular formula C6H8O2. Under similar conditions, compound B is converted into two products, compounds 2 and 3, each of which has the molecular formula C8H12O2. Draw the structures of compounds 1, 2, and 3 and explain why compound A gives only one metathesis product while compound B gives two metathesis products.

Nitric acid can be formed in two steps from the atmospheric gases nitrogen and oxygen, plus hydrogen prepared by reforming natural gas. in the first step, nitrogen and hydrogen react to form ammonia: (g) (g) (g) in the second step, ammonia and oxygen react to form nitric acid and water: (g) (g) (g) (g) calculate the net change in enthalpy for the formation of one mole of nitric acid from nitrogen, hydrogen and oxygen from these reactions. round your answer to the nearest .