H2SO4 is sulfuric acid, a strong and highly corrosive mineral acid. It is a diatomic molecule consisting of two hydrogen atoms (H), one sulfur atom (S), and four oxygen atoms (O). Sulfuric acid is widely used in various industrial processes, including the production of fertilizers, detergents, and as a laboratory reagent. It is known for its strong acidity and its ability to react with many substances, making it an essential component in numerous chemical reactions and applications.