Oxygen gas reacts with powdered aluminum according to the reaction: 4Al(s)+3O2(g)→2Al2O3(s)

How many liters of O2 gas, measured at 785 mmHg and 26 ∘C, are required to completely react with 2.7 mol of Al?

Please show me how to do this problem. Im stuck.

This chart lists four kinds of polymers and their sources. what can be known about all four polymers, despite their differences? they come from living things. they share ionic carbon bonds. they are at least 100 monomers long. they are made of repeating subunits.

How does blood clotting prevent the entry of pathogens through cuts and wounds? answer asap,, this is due tomorrow. will mark as brainliest or whatever you call it : )

What is the percent by mass of magnesium sulfate in mgso4.7h2o