Fill in the blank with the correct number to balance the equation 4Cr +3O2 -> CR2O3 (enter only a whole number)

The balanced equation is given below:

4Cr + 3O₂ —> 2Cr₂O₃

Explanation:

From the question given above the following equation was obtained

4Cr + 3O₂ —> Cr₂O₃

The equation can be balance as illustrated below:

4Cr + 3O₂ —> Cr₂O₃

There are 4 atoms of Cr on the left side and 2 atoms on the right side. It can be balance by writing 2 before Cr₂O₃ as shown below:

4Cr + 3O₂ —> 2Cr₂O₃

Now the equation is balanced.

i believe the answer is true.