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May 9, 2018 at 7:37 am

Perhaps,you think of salt as the one you use for seasoning food,sodium chloride or table salt. The term salts includes all comrounds of metals and nonmetals. A simple salt is formed when a metal combines with one or more nonmetals. Oxygen is usually the second nonmel. Hence.they are called oxysalts. Double salts are formed when two or more metals combine with one or more nonmetals. An example is potassium aluminum sulfate [KAI(SO4)2] OR Tawas.