Na2O, or sodium oxide, is a chemical compound made up of two sodium (Na) atoms and one oxygen (O) atom. It is a white, solid substance that is typically formed when sodium reacts with oxygen. Sodium oxide is primarily used in the production of glass and ceramics, as it helps to lower the melting point of silica. In addition to its industrial applications, Na2O plays a role in various chemical reactions. It can react with water to form sodium hydroxide (NaOH), a strong base. This property makes sodium oxide useful in laboratories and manufacturing processes where strong alkaline solutions are needed.