Metal salts are chemical compounds formed when a metal reacts with an acid, resulting in the metal cation and an anion from the acid. These salts often have distinct properties, such as solubility in water, which can vary widely depending on the specific metal and anion involved. Common examples include sodium chloride and copper sulfate. Metal salts are used in various applications, including agriculture, where they serve as fertilizers, and in industry for manufacturing processes. They can also be found in everyday products, such as antacids and medications, highlighting their importance in both health and technology.