Question

The balanced equation C + O2→CO2 tells us that 24.02 g of carbon will exactly react with

a) 32.0 g of O2
b) 2.0 moles of O2
c) 6.02 E 23 molecules of O2
d) no correct response

Answer 1

The correct answer is B) 2.0 moles of O2, because of the next formula/procedure:
m= 2 mol * 32 gmol-1 =64 g
I think this can help you a lot