The subscript is mentioned only in a chemical formula.
3 FeCl3 in a chemical reaction is not similar to Fe3O4 in a chemical formula.
The balanced equation is 3 Fe3O4 + 8 Al -> 4 Al2O3 + 9 Fe. Therefore, the coefficient of Fe is 9.
The balanced equation is 2Fe2O3 + 4Al ----> 2Al2O3 + 3Fe. The coefficient of Fe is 3.
The balanced chemical equation for the reaction is: 3FeO4 + 8Al -> 4Al2O3 + 3Fe Therefore, the coefficient of Fe is 3.
In the balanced chemical equation 4Fe + 3O2 -> 2Fe2O3, the coefficient in front of iron (Fe) is 4.
The 2007 Hyundai Santa-FE has a drag coefficient of .38 Cd.
The 2008 Hyundai Santa-FE has a drag coefficient of .38 Cd.
The 2010 Hyundai Santa-FE has a drag coefficient of .38 Cd.
The 2009 Hyundai Santa-FE has a drag coefficient of .38 Cd.
The 2011 Hyundai Santa-FE has a drag coefficient of 0.38 Cd.
This reaction is:Al + Fe2O3 = Al2O3 + Fe
The balanced chemical equation for the reaction of iron (Fe) with copper (Cu) is: Fe(s) + CuSO4(aq) → FeSO4(aq) + Cu(s)
This is a balanced chemical equation.