Annie is trying to attract her metal pencil box with a magnet from the other side of her desk. The pencil box does not move. What is most likely true?

A. The pencil box is repelling the force of the magnet.
B. The pencil box can not move without touching the magnet.
C. The pencils inside the box are repelling the magnet.
D. The pencil box is too far away from the magnet to make it move.

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 .