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Definition of Na2O
Na2O, commonly known as Sodium Oxide in English, is a chemical compound. It consists of 2 sodium atoms (Na) and 1 oxygen atom (O). Na2O has an atomic mass of 62, including 46 atomic mass units from sodium and 16 from oxygen. With this molecular structure, Na2O has an ionic structure of 2Na+ and O2-. -
Properties of Na2O
2.1 Physical properties of Na2O
Na2O is in a solid state, white in color and odorless. This is a base, so it has a high pH level.
2.2 Chemical properties of Na2O
Na2O reacts with water to form sodium hydroxide (NaOH) and generates a large amount of heat. -
Common chemical equations
Na2O reacts with acids (HCl, H2SO4,…) to form salts and water.
Example: Na2O + H2SO4 -> Na2SO4 + H2O
With non-metals, Na2O can react with CO2 to form Na2CO3. -
Preparation of Na2O
4.1 Laboratory preparation
Na2O can be prepared by heating sodium with oxygen.
4.2 Industrial preparation
In industry, Na2O is usually produced by burning sodium in the air.