The reaction takes place between substances such as barium chloride salt and sodium sulfate salt. As a result of the exchange reaction that takes place between these substances, a sodium chloride salt and a sodium sulfate salt are formed, which precipitates. The molecular equation of a chemical reaction can be written as follows:
BaCl2 + Na2SO4 = BaSO4 ↓ + 2NaCl
The ionic equation of a chemical reaction can be written as follows:
Ba2+ + 2 Cl− + 2 Na+ + SO42− = BaSO4↓ + 2 Na+ + 2 Cl−
The abbreviated ionic equation can be written as follows:
Ba2+ + SO42− = BaSO4↓.
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