Which of the following is true about critical analysis of promotional claims? a. It is necessary because consumers generally do not need to purchase goods.

b. Advertisements intend to mislead consumers about the goods they portray.

c. It prevents consumers from purchasing unnecessary goods.

d. It is essential because advertisements always contain false information.

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 .