Answer:
4 moles Fe and 6 moles CO2 are the moles of each products formed
Explanation:
Fe2O3 + 3CO → 2Fe + 3CO2
1st step Ballance the equation. Afterwards, you can work properly
1 mol of Fe2O3 reacts with 3 moles of CO to make 2 moles of Fe and 3 moles of CO2
2nd step Predict the reactant in excess and limitant reagent.
If 1 moles of Fe2O3 reacts with 3 moles of CO
2 moles of Fe2O3 reacts with 6 moles of CO (2.3) /1
I have 9 moles of CO, so the Fe2O3 is my limitant reagent.
<u><em>REMEMBER</em></u> you always have to work with the limitant.
If 3 moles of CO reacts with 1 mol of Fe2O3
9 moles of CO reacts with 3 moles of Fe2O3 (9.1) /3
I have 2 moles of Fe2O3, so I still have Fe2O3, by the way the CO is the reactant in excess. (Just to show all)
3rd step Work with the limitant reagent.
1 mol of Fe2O3 ___ makes____ 2 moles of Fe + 3 moles of CO
2 mol of Fe2O3 ___ makes ___ 4 moles of Fe + 6 moles of CO
So, the form of scientific notation is 