\(O 2 > N 2 > C > H 2 ( 32 > 28 > 12 > 2 )\)
\(O 2 > N 2 > C > H 2 ( 32 > 28 > 12 > 2 )\)
\(M_{H_2}=2\left(\dfrac{g}{mol}\right)\\ M_{N_2}=28\left(\dfrac{g}{mol}\right)\\ M_{O_2}=32\left(\dfrac{g}{mol}\right)\\ C.ko.ở.thể.khí\\ M_{H_2}< M_{N_2}< M_{O_2}\left(2< 28< 32\right)\\ H_2.là.khí.nhẹ.nhất\)