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A chemist dissolves silver nitrate (AgNO₃) in water. He also dissolves ammonium chloride (NH₄Cl) in water. He mixes the two solutions. A precipitate of silver chloride (AgCl) forms. Which chemical equation correctly represents this reaction?
a. AgNO₃(s) + NH₄Cl(s) [tex]\rightarrow[/tex] AgCl(s) + NH₄NO₃(s)
b. AgNO₃(aq) + NH₄Cl(aq) [tex]\rightarrow[/tex] AgCl(aq) + NH₄NO₃(aq)
c. AgNO₃(aq) + NH₄Cl(aq) [tex]\rightarrow[/tex] AgCl(s) + NH₄NO₃(aq)

Respuesta :

Answer:

c. AgNO₃(aq) + NH₄Cl(aq) ->AgCl(s) + NH₄NO₃(aq)

Explanation:

We have to follow the solubility rules to check the states of each compound.

-) All the cholride salts are soluble EXCEPT those also containing: lead, silver or mercury. [tex]Pb^+2~Ag^+~Hg_2^+^2[/tex]

-) All the nitrate [tex]NO_3[/tex] and ammonium salts [tex]NH_4^+[/tex] are soluble.

With this in mind [tex]AgNO_3[/tex], [tex]NH_4Cl[/tex] and [tex]NH_4NO_3[/tex] would be soluble, so we have to use the aqueosus state (aq).

The [tex]AgCl[/tex] then would have a solid state (s).

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