I would say D. Hope I helped, sorry if I didn't. :)
137 g NO) / (30.0061 g NO/mol)x (43kcal / 2 mil NO) = 98kcal
Answer: The Answer is minus 221kj.
Explanation: Solved in the attached picture.
Answer,googles helps that no chemical will come into contact with your eyes while an apron prevent your clothes being in touch with your clothes
Explanation: