What is the net ionic equation for the precipitation reaction between BaCl2
and Na2SO4?
a. Ba2+ (aq) + SO - (aq) → BaSO,(s)
b. Na+ (aq) + Cl-(aq) → NaCl(s)
c. Ba2+ (aq) + 2CI+ (aq) + 2Na+ (aq) + SO2 (aq) →
BaSO4(s) + 2C1+ (aq) + 2Na+ (aq)
d. BaCl2(aq) + Na2SO4(aq) → BaSO4(s) + 2NaCl(aq)
Answers
Explanation:
BaCl2(aq) + Na2SO4(aq) → BaSO4(s)↓ + 2NaCl(aq) is the equation for the reaction. Sodium and chloride ions are the spectator ions.
Answer: The net ionic equation for the precipitation reaction between BaCl2 and Na2SO4 is:
Ba2+(aq) + SO42-(aq) → BaSO4(s)
This equation represents the reaction of the ions that participate in the precipitation reaction and excludes the spectator ions that do not participate in the reaction. In this case, the spectator ions are Na+ and Cl-.
The complete ionic equation for the precipitation reaction is:
Ba2+(aq) + 2Cl-(aq) + 2Na+(aq) + SO42-(aq) → BaSO4(s) + 2Na+(aq) + 2Cl-(aq)
In this equation, the ions that are soluble in water and are present before and after the reaction are shown as aqueous (aq), and the solid product is shown as a solid (s). The spectator ions are also shown in the equation.
The net ionic equation is obtained by eliminating the spectator ions from the complete ionic equation, which leaves only the ions that participate in the reaction. In this case, the net ionic equation shows only the formation of the solid BaSO4 product.
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