Question

Aqueous solutions of silver nitrate (agno3) and iron (iii) chloride (fecl3) are mixed together. which ion combines with the chloride ion to form a precipitate.
a

A) Fe3+(aq)

B) NO3-(aq)

C) Ag+(aq)

Answer 1

Answer : The correct option is, (C) $Ag^+(aq)$

Explanation :

The balanced chemical reaction will be:

$3AgNO_3(aq)+FeCl_3(aq)\rightarrow 3AgCl(s)+Fe(NO_3)_3(aq)$

The given reaction is a double-displacement reaction in which the cation of two reactants molecule exchange their places to give two different products.

Precipitation reaction : It is defined as the reaction in which an insoluble salt formed when two aqueous solutions are combined.

The insoluble salt that settle down in the solution is known an precipitate.

That means in this reaction, the positively charged ion $Ag^+$ combines with negatively charged ion $Cl^-$ to form $AgCl$ that is insoluble in water, It forms a precipitate and the positively charged ion $Fe^{3+}$ combines with $NO_3^-$ negatively charged  ion to produce $Fe(NO_3)_3$ that dissolves in water.

Hence, the $Ag^+$ ion combines with the chloride ion to form a precipitate.

Answer 2

The answer is C  Ag+(aq)