balanced equation for potassium nitrate(s)--->potassium nitrate(s)+oxygen(g)

Answer 1

I don't think this makes sense... there are not any oxygens on the left so Im pretty sure it doesn't work, unless you just add oxygen to the left im not sure you can do that though... If so it would look like this

KNO3 --> KNO3 + O
^add O to this side as well

Once again im pretty sure it doesnt make sense though

Answer 2

2KNO3 + heat ==> 2KNO2 + O2