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**1. Homework Statement**

What volume in dm³ of KCl is obtained in the following equation 2KClO3-----> 2KCl + 3O2?

**2. Homework Equations**

None

**3. The Attempt at a Solution**

I suppose there is not enough data and according to equation it is 44.8dm³. But my book says 2 dm³, I don't understand how?