Varun carried out the chemical reaction between aqueous solutions of barium chloride and sodium sulphate. Write any one prominent observation that Varun would have recorded. Name the type of chemical reaction that has occurred and define it. Write a balanced chemical equation to explain above reaction.

Explanation

### Step-by-Step Solution:

1. **Identify the Reactants**: The reactants in the reaction are barium chloride (BaCl₂) and sodium sulfate (Na₂SO₄).

2. **Write the Reaction**: When barium chloride reacts with sodium sulfate, they undergo a double displacement reaction. The products formed are barium sulfate (BaSO₄) and sodium chloride (NaCl).

3. **Prominent Observation**: One prominent observation Varun would have recorded is the formation of a white precipitate of barium sulfate (BaSO₄) when the two solutions are mixed.

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