This balanced equation shows us the ratios of reactants and products, so for every 3 oxygen molecules, we see that 4 iron atoms react as well. The answer is 4.
Answer:
its either A or B most likley A if im wrong then im sorry.
Explanation:
have a wonderfull day
Two moles because one moles would be 6.02×10 23 atoms 2 moles would equal twice that number of atoms
Mass, if you know what element you are working with.
