👉 In chemistry, a salt is a compound that contains one or more metals as an element. When a metal (like iron) dissolves in water, it forms a solution of the metal and water. The dissolved metal is called a solute, while the solvent is called a solvent. A salt can be defined as a substance that has been altered by adding a metal to its chemical formula. This alteration involves changing one or more atoms from the element with which the salt was formed into an element in