Answer the following questions assuming the known reactant is used up in making the rust. Show all your work. Use the rations of reactants (ingredients) from the balanced equation 4Fe + 3O2 = 2Fe2O3
a. How many atoms of iron would be needed to react completely with 36 molecules of oxygen?
b. How many molecules of oxygen would be needed to react completely 16 atoms of iron?
c. How many moles of oxygen molecules would be needed to react with 4 moles of iron atoms?
d. How many moles of iron atoms would be needed to react with 3.75 moles of oxygen molecules?