Question

Which chemical equation represents a precipitation reaction? A. Mg(ClO3)2(aq) + 2HCl(aq) → MgCl2(aq) + 2HClO3(aq) B. AlBr3(aq) + 3LiI(aq) → AlI3(aq) + 3LiBr(aq) C. NH4NO3(aq) + HBr(aq) → NH4Br(aq) + HNO3(aq) D. Li2CO3(aq) + FeCl2(aq) → 2LiCl(aq) + FeCO3(s)

Answer 1

Answer:

The correct answer is

D.   Li2CO3(aq) + FeCl2(aq) → 2LiCl(aq) + FeCO3(s)

Answer 2

The correct answer is (D) Li₂CO₃(aq) + FeCl₂(aq) → 2LiCl(aq) + FeCO₃(s)

• Precipitation is the process of converting a dissolved component from a super-saturated solution into an insoluble solid.
• A precipitation reaction is a chemical process reaction that creates produces an insoluble salt when two ionic bonds join in an aqueous solution.
• Two products are produced when two distinct soluble salts in aqueous solutions are mixed. One of these items is precipitated out because it cannot be dissolved in the solution. This is known as a precipitate.
• Precipitation reactions are often double displacement reactions that result in the formation of a solid form of residue (precipitate).
• Here,  Li₂CO₃(aq) + FeCl₂(aq) → 2LiCl(aq) + FeCO₃(s) is a precipitation reaction.
• FeCO₃ is the precipitate.

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