The Reaction:
Barium chloride (BaCl₂) and sodium sulfate (Na₂SO₄) react in an aqueous solution to form insoluble barium sulfate (BaSO₄) and soluble sodium chloride (NaCl).
The Equation:
BaCl₂ (aq) + Na₂SO₄ (aq) → BaSO₄ (s) + 2NaCl (aq)
Explanation:
* Barium sulfate (BaSO₄) is a white, solid precipitate that is practically insoluble in water. This is why it forms a solid in the reaction.
* Sodium chloride (NaCl), also known as table salt, is highly soluble in water and remains dissolved in the solution.
Key Points:
* Solubility: The reaction depends on the solubility rules of ionic compounds. Some salts are soluble, while others are not.
* Precipitation: The formation of the insoluble barium sulfate (BaSO₄) is the driving force behind the reaction. The precipitate separates from the solution.
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