The pH of a solution is 7. Which best describes the solution? •The solution has more hydrogen ions than hydroxide ions.

•The solution has fewer hydrogen ions than hand soap.

•The solution has the same number of hydrogen ions as apple juice.

•The solution has the same number of hydrogen ions and hydroxide ions.

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 .