What is the oxygen in the air we breathe classified as?

Calculate the molar mass of aluminum oxide (al2o3). express your answer to four significant figures.

Gymnast always perform on padded mats. how does the mats protect the gymnast

21. consider the following chemical reaction: n2+ o2 2 no if 10.0 g of n2 reacts with excess oxygen then how many grams of no can be formed? a) 10.7 g b) 21.4 g c) 32.9 g d) 42.8 g page 4 of 8