sód---(1)--->tlenek sodu---(2)---wodorotlenek sodu
|-----------------(4)------------------------|
(3)
|
chlorek sodu
1........
2.........
3........
4.......
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1. 2Na+O2-->Na2O2
2Na+Na2O2-->2Na2O
2. Na2O+H2O-->2NaOH
3. 2Na+Cl2-->2NaCl
4. 2Na+2H2O-->2NaOH+H2