Answer:
The coefficient of O2 is 3
Explanation:
Ba(ClO3)2 —> BaCl2 + O2
The equation can be balance as follow:
There are a total of 6 atoms of O on the left side and 2 atoms on the right side. It can be balance by putting 3 in front of O2 as shown below:
Ba(ClO3)2 —> BaCl2 + 3O2
Now the equation is balanced.
Therefore the coefficient of O2 is 3
