oxide
O²⁻
An oxide is a chemical compound that contains at least one oxygen atom and one additional element, such as carbon, nitrogen, or metals like iron or aluminum. Oxides can be formed through a variety of chemical processes, including combustion reactions, chemical reactions between metals and oxygen, and interactions between water and metal ions.
Oxides can be classified into three main categories: acidic, basic, and amphoteric. Acidic oxides, such as carbon dioxide, sulfur trioxide, and nitrogen dioxide, react with water to form acidic solutions. Basic oxides, such as sodium oxide and calcium oxide, react with water to form basic solutions. Amphoteric oxides, such as aluminum oxide and zinc oxide, can act as either acids or bases depending on the reactants present.
Oxides have a wide range of applications in industry and chemistry. For example, carbon monoxide is used as a reducing agent in the production of iron, while silicon dioxide is used in the production of glass and ceramics. Many metallic oxides are also used as pigments in paints and coatings.
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