Question

What happens when sodium sulphate reacts with aqueous solution of barium chloride.Write balanced equation?

Answer 1

Na2So4 + BaCl2 = BaSo4 + 2NaCl
In this reaction both the salts exchange their ions therefore it is a double displacement reaction.
An insoluble white substance Barium Sulphate is also form which separates out from the solution and forms a precipitate.
So it is also A precipitation reaction.
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Answer 2

Answer:

A white ppt. ( precipitate ) is formed.

Na₂SO₄ ( aq ) + BaCl₂ ( ag ) ⇒  2 NaCl ( aq ) + BaSO₄ ( ↓ )

Doubled Displacement reaction

The reaction in which there is an exchange of ions between the reactants.