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Answer : In the above question, the equation given is:
Na + O2 → Na2O
The O and Na both are not equilibrated or balanced, so equilibrated or balanced equation by hit and trial method ordain be:
4Na + O2 → 2Na2O
The metallic element sodium is a very oxidisable or reactive metal. It tends to react with the element of oxygen to form an oxide of sodium or sodium oxide, but this is a volatile chemical compound and shortly reacts with the chemical element of hydrogen to constitute sodium hydroxide.
Sodium is a metallic element that acts vigorously with water and oxygen.
Na2O is a sodium oxide constituted by the chemical reaction between sodium metallic element and chemical element of oxygen in the air at room temperature.
