Question

What happens when an aqueous solution of sodium sulphate and barium chloride are mixed? Give a balanced equation for the reaction with state symbols. Name and define the type of chemical reaction involved in the above change.

Answer 1

When solutions of barium chloride and sodium sulphate are mixed together, then an insoluble precipitate of barium sulphate and solution of sodium chloride is obtained. Hence, this reaction is a precipitation reaction. The chemical equation for reaction between barium chloride and sodium sulphate is represented as follows

 BaCl2 (aq) + Na2SO4 (aq) → BaSO4 (↓) + 2NaCl (aq) 

the above reaction is a double displacement reaction since the two compounds exchange their respective ions which results in the formation of two new compounds.

The above reaction will not take place if both the reactants are present in solid state. 

Answer 2

Hello!!

Your answer is:

When aqueous solution of BaCl2 and Na2SO4 are mixed, they react with each other and form aqueous solution of NaCl with white white precipitate of BaSO4.
The equation is:

Na2SO4(aq) + BaCl2(aq) ---------> 2NaCl(aq) + BaSO4(s)


The above reaction is called as precipitate reaction or double displacement reaction.
It is defined as the reaction in which new compounds are formed by the exchange of ions.

Hope it helps!!!