The chemical formula "CrO₄²⁻" represents the chromate ion, which consists of one chromium atom bonded to four oxygen atoms. It carries a negative two charge, indicating that it has gained two extra electrons. Chromate is commonly found in various chemical compounds and is often used in industrial applications, such as in pigments and corrosion inhibitors. Chromate ions are important in environmental chemistry, as they can be toxic and are regulated due to their potential health risks. They can be converted into less harmful forms, such as Cr(III), through chemical reactions, making their management crucial in pollution control efforts.