These reactions are not balanced, but hypothetically, the balanced equation would be:
KClO3 -> KCl + 3/2 O22 KCl + 3/2 O2 -> 2K + Cl2 + O24 K + O2 -> 2K2O2K2O + 2H2O -> 2KOH + H2ONa2O + H2SO4 -> Na2SO4 + H2O
These reactions are not balanced, but hypothetically, the balanced equation would be:
KClO3 -> KCl + 3/2 O2
2 KCl + 3/2 O2 -> 2K + Cl2 + O2
4 K + O2 -> 2K2O
2K2O + 2H2O -> 2KOH + H2O
Na2O + H2SO4 -> Na2SO4 + H2O