Question

Is BaCl2 (aq) + Na2SO4 (aq) → 2 NaCl(aq) + BaSO4 (s) endothermic or exothermic?

Answer 1

endhothermic as the energy is taken

Answer 2

Reaction between $BaCl_2 and Na_2SO_4$ is an endothermic reaction.

• When barium chloride ($BaCl_2$) and sodium sulfate ($Na_2SO_4$), it leads to the formation of sodium chloride and barium sulfate.
• The chemical equation involved in the given reaction is as follows:

$BaCl_2+Na_2SO_4\rightarrow 2NaCl+BaSO_4$

• As a result of the above given reaction, a white color precipitate is formed due to the formation of barium sulfate.
• As the white precipitate formed is cool, the given reaction is inferred to be an endothermic reaction.
• This reaction is also an example of a double displacement reaction as two elements in the reactants are displacing each other.

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