Twiceonce3033 Twiceonce3033 20-12-2022 Chemistry contestada A 15. 20 g of nitrogen will react with 17. 37 g, 34. 74 g, or 43. 43 g of oxygento form three different compounds. a)Calculate the mass of oxygen per gram of nitrogen in each compound. b) How do the numbers in part (a) support the atomic theory?