A certain party wants to use potassium sulfate and barium acetate as the main ingredients to perform various chemical changes. Potassium sulfate is pure in color and white, soluble in water and stable in nature. Barium acetate is also a white crystal, soluble in water, and has its own characteristics.

Put the two in a container and use water as a medium to mix the phases. During the interaction of ions, sulfate ions and barium ions are combined, gradually precipitating barium sulfate. Barium sulfate is white and heavy in color and insoluble in water and various acids. Potassium ions and acetate ions still exist in solution.

Looking at its changes, this is a common case of ionic reactions. According to the principle of chemistry, when potassium sulfate meets barium acetate, it forms a liquid of barium sulfate precipitation and potassium acetate. This reaction follows the rules of chemistry and depends on the nature of elements and the combination of ions. It makes scholars understand that the wonder of material combination is also used in chemical industry and experiments. It is also useful to analyze and control.