The chemical equation provided shows iron rusting to form iron oxide. use the drop-down menu to choose the coefficients that will balance the chemical equation. ()fe + ()o2 → ()fe2o3

Explanation:

The original equation is:

We notice that:

- we have 1 atom of Fe on the left, and 2 atoms of Fe on the right

- we have 2 atoms of O on the left, and 3 atoms of O on the right

Therefore, the equation is not balanced.

In order to balance it, we can add:

- a coefficient 3 in front of

- a coefficient 2 in front of

So we have:

Now the oxygen is balanced, but the iron it not balanced yet, since we have 1 Fe on the left and 4 on the right. Therefore, we should add a coefficient 4 on the Fe on the left:

4 3 2 is ur answer for short

Explanation:

b) phosphorus pentoxide

it has to be b, about 97 percent.