What is the coefficient for iron after the following reaction is balanced? Fe + O₂ → Fe2O₃

Question

Quizplus · Accepted Answer

To balance this equation, we need to make sure that the number of atoms of each element is the same on both sides. Here's how:
Fe + O₂ → Fe2O₃
On the left-hand side, we have 1 Fe atom and 2 O atoms. On the right-hand side, we have 2 Fe atoms and 3 O atoms. To balance the Fe atoms, we need to put a coefficient of 2 in front of Fe on the left-hand side. This gives us:
2 Fe + O₂ → Fe2O₃
Now we have 2 Fe atoms on both sides, but we have 2 O atoms on the left and 3 O atoms on the right. To balance the O atoms, we need to put a coefficient of 3 in front of O₂ on the left-hand side. This gives us:
2 Fe + 3 O₂ → Fe2O₃
So the coefficient for iron (Fe) is 2.

What Is the Coefficient for Iron After the Following Reaction