Answer:
2KClO₃ → 2KCl + 3O₂
Explanation:
We identify the compounds for this reactions, reactants and products:
KClO₃ , KCl and O₂
Potassium chlorate can be dissociated as this:
KClO₃ → K⁺ + ClO₃⁻
and potassium chloride can be dissociated as this:
KCl → K⁺ + Cl⁻
In order to balance, we add a 2 in the chlorate and 2 in the chloride, but we unbalance the oxygen.
In chlorate we have 6 oxygen, so we must add a 3, in the product side:
2KClO₃ → 2KCl + 3O₂
