The following equation shows the formation of aluminum oxide: 4Al + 3O2 à 2Al2O3 How many moles of O2 are needed to produce 37.37 moles of Al2O3 ?

The answer is 4 i don't know if its right let me see.

Hello thereone of the following properties was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version. which property fits this description? answer: atomic mass  was originally used to arrange elements on the periodic table, but is no longer used to organize the modern version.

It is a product

D=m/v =57.9/3 = 19.3 g/cm^3