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Which of the following substances is in solid form in the given reaction? Sodium sulphate + barium chloride тЖТ sodium chloride + barium sulphate
Barium chloride
Barium sulphate
Sodium sulphate
Sodium chloride
Barium sulphate
In the chemical reaction between sodium sulphate (Na2тАЛSO4тАЛ) and barium chloride (BaCl2тАЛ), a double displacement reaction occurs to form barium sulphate (BaSO4тАЛ) and sodium chloride (Na┬аCl). Barium sulphate is formed as an insoluble, white precipitate, which is in the solid state (s) in this aqueous medium.
In the chemical reaction between sodium sulphate (Na2тАЛSO4тАЛ) and barium chloride (BaCl2тАЛ), a double displacement reaction occurs to form barium sulphate (BaSO4тАЛ) and sodium chloride (Na┬аCl). Barium sulphate is formed as an insoluble, white precipitate, which is in the solid state (s) in this aqueous medium.
Think of it like mixing two clear liquids that suddenly turn cloudy and form a 'dust' at the bottom; that 'dust' is the solid precipitate (barium sulphate).
B-S-S: Barium Sulphate is Solid (precipitate).
Na2тАЛSO4тАЛ(aq)+BaCl2тАЛ(aq)тЖТ2NaCl(aq)+BaSO4тАЛ(s) тАФ Balanced chemical equation showing the solid precipitate
This is a classic precipitation reaction. When aqueous solutions of sodium sulphate and barium chloride are mixed, the Ba2+ ions react with SO42тИТтАЛ ions to form an insoluble ionic compound, barium sulphate, represented as BaSO4тАЛ(s). The other product, sodium chloride, remains dissolved in the water as Na┬аCl(aq).
Sodium sulphate and barium chloride are both soluble salts in water.
Barium sulphate is an insoluble salt that appears as a white precipitate.
This is an example of a double displacement (or precipitation) reaction.
Used in the laboratory to test for the presence of sulphate ions.
Used in the gravimetric analysis of barium or sulphate.
The precipitate BaSO4тАЛ is white in color.
Option A is incorrect because sodium sulphate is soluble in water (aqueous).
Option C is incorrect because sodium chloride is soluble (aqueous).
Option D is incorrect because barium chloride is soluble (aqueous).
B is correct тАФ Barium sulphate (BaSO4тАЛ) is the solid product (precipitate) formed in this reaction.
Remember: In double displacement reactions involving silver (Ag), lead (Pb), or barium (Ba), always look for the formation of an insoluble precipitate.
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