HClO3, or chloric acid, is a strong acid that contains chlorine, hydrogen, and oxygen. It is a colorless liquid that is highly soluble in water and is often used in various chemical processes, including the production of chlorine compounds and as a reagent in laboratories. Chloric acid is known for its oxidizing properties, which means it can easily donate oxygen to other substances. It is important to handle HClO3 with care, as it can be corrosive and reactive, especially when in contact with organic materials or reducing agents.