Recently Mt. Etna erupted on the island of Sicily. Every year, Mt. Etna releases 2.91 x 109 kg of SO2 into the atmosphere. Using the enthalpy of the reaction calculated in Question 1, how much heat, in kJ, is generated from this release? Please report your answers in scientific notation in the fields below.

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 .