Balance the equation mg+fe2o3-> mgo+fr

3Mg +Fe2O3 ---> 3 MgO + 2Fe

Explanation:

3Mg +Fe2O3 ---> 3 MgO + 2Fe

Mg  3                     Mg    3

Fe    2                    Fe     2

O     3                       O     3

before                     after

3Mg + Fe2O3 = 2Fe + 3MgO

Explanation:

Make sure the number of each element equal on both right and left hand side

Eg. There are 3 molecules of oxygen on left hand side so to balance right hand side add a 3 in front of MgO, because you've added a 3 in front of MgO you now have to add a 3 in front of Mg on the left hand side to balance it out and continue to do so for the rest of the chemical equation.

answer///carbon;