👉 Iodates are compounds composed of a metal (usually lead) and its sulfate ion, which is an ionic compound. They are formed when a metal such as lead reacts with a strong acid or base to form a metal(II) salt and sulfate ions. Lead(II) chloride, for example, is a well-known iodate, as it contains lead(III) chloride (PbCl2), which is a strong acid that can react with sulfuric acid (H2SO
