In the given chemical equation, What is the missing coefficient to balance the equation?4 Fe +   3 O2 → __ Fe2O3

The missing coefficient to balance the chemical equation 4 Fe + 3 O2 → __ Fe2O3 is 2.

Here's the step by step process:

1. Start by balancing the iron (Fe) atoms. There are 4 Fe atoms on the left side of the equation, so you need 2 Fe2O3 molecules on the right side to balance it (since each Fe2O3 molecule contains 2 Fe atoms).

2. Now, check the oxygen (O2) atoms. There are 3 O2 molecules on the left side (each containing 2 O atoms, so a total of 6 O atoms). On the right side, each Fe2O3 molecule contains 3 O atoms, so 2 Fe2O3 molecules contain 6 O atoms.

So, the balanced equation is: 4 Fe + 3 O2 → 2 Fe2O3.