Basic oxides are compounds formed when metals react with oxygen. They typically consist of metal cations and oxide anions. These oxides can react with acids to produce salts and water, making them basic in nature. Common examples include sodium oxide and calcium oxide. Basic oxides are often used in various industrial applications, such as in the production of glass and ceramics. They can also serve as catalysts in chemical reactions. When dissolved in water, some basic oxides form alkaline solutions, which can be useful in neutralizing acids in different processes.