How would you balance the following reactions using the oxidation number change method?
#KClO_3 -> KCl + O_2#
#SbCl_5 + KI -> SbCl_3 + KCl + I_2#
In the given equation,
And we takes
Charge is balanced and mass is balanced, so the equation is reasonable.
Here's how to balance the second equation by the oxidation number method.
We start with the unbalanced equation:
Step 1. Identify the atoms that change oxidation number
The atoms that change oxidation number are:
Step 2. Equalize the changes in oxidation number
We need 2 atoms of
This gives us total changes of +2 and -2.
Step 3. Insert coefficients to get these numbers
Step 4. Balance
We have fixed 5
Every formula now has a coefficient. The equation should be balanced.
Step 5. Check that all atoms are balanced.
The balanced equation is