4Na + O2 = 2Na2O if you use 18 grams of O2 how many grams of Na will you have to also use to make the reaction work​

What term is missing from the central region that describes hypotheses, theories, and laws? popular predictable mathematical falsifiable

What is the molar mass of a gas that has density of 2.054 g/l

Apropane torch is lit inside a hot air balloon during preflight preparations to inflate the balloon. which condition of the gas remains constant