Fe2O3 + 2Al --> Al2O3 + 2Fe
The balanced equation is 3 Fe3O4 + 8 Al -> 4 Al2O3 + 9 Fe. Therefore, the coefficient of Fe is 9.
This equation is Al2O3 + 6 HCl = 2 AlCl3 + 3 H2O.
The balanced chemical equation for the reaction between Al and O2 is: 4Al + 3O2 -> 2Al2O3 Therefore, the coefficient needed for Al to balance the equation is 4.
3FeO4 + 8Al --> 3Fe + 4Al2O3
This reaction is:Al + Fe2O3 = Al2O3 + Fe
The balanced equation is 3 Fe3O4 + 8 Al -> 4 Al2O3 + 9 Fe. Therefore, the coefficient of Fe is 9.
This equation is Al2O3 + 6 HCl = 2 AlCl3 + 3 H2O.
The balanced chemical equation for the reaction between Al and O2 is: 4Al + 3O2 -> 2Al2O3 Therefore, the coefficient needed for Al to balance the equation is 4.
3FeO4 + 8Al --> 3Fe + 4Al2O3
The chemical equation is:2 Al(OH)3 = Al2O3 + 3 H2O
This reaction is:Al + Fe2O3 = Al2O3 + Fe
Compound formula: Al2O3 + C --> Al + CO2 Make it balanced: 2 Al2O3 + 3 C --> 4 Al + 3 CO2
The reaction is:Fe2O3 + 2 Al = 2 Fe + Al2O3
3
Because the numbers of aluminum and oxygen atoms are not the same on both sides of the equation, so the equation is not balanced. In order to be balanced, the numbers of atoms of each element must be the same on both sides of the equation. The correct equation is 4Al + 3O2 --> 2Al2O3. This gives 4 aluminum atoms and 6 oxygen atoms on both sides of the equation, so it is balanced.
A coefficient in chemistry, as in other disciplines, is a number that comes before or in front of some expression. It could be in front of an element, a compound, etc. and indicates the number of atoms, molecules, moles, etc. of that expression. An example might be the following: 4 Al + 3 O2 -->2 Al2O3.In this example, the coefficients are 4, 3 and 2 indicating 4 moles Al, 3 moles O2 and 2 moles Al2O3, respectively.
2Al + 3H2O ---> Al2O3 + 3H2