If solutions containing equal amounts of \(\mathrm{AgNO}_{3}\) and \(\mathrm{KCl}\) are mixed, what is the identity of the spectator ions? (A) \(\mathrm{Ag}^{+}, \mathrm{NO}_{3}^{-}, \mathrm{K}^{+},\) and \(\mathrm{Cl}^{-}\) (B) \(\mathrm{Ag}^{+}\) and \(\mathrm{Cl}^{-}\) (C) \(\mathrm{K}^{+}\) and \(\mathrm{Ag}^{+}\) (D) \(\mathrm{K}^{+}\) and \(\mathrm{NO}_{3}^{-}\)

Short Answer

Expert verified
The spectator ions in the reaction are K+ and NO3-. Therefore, the correct answer is (D) K+ and NO3-.

Step by step solution

01

Breaking compounds into ions

The first step is to dissociate the compounds into their constituent ions. Dissociation of AgNO3 gives Ag+ and NO3- ions and dissociation of KCl gives K+ and Cl- ions.
02

Forming the reaction

The next step is to visualize the reaction that occurs when the two solutions are mixed. The equation below represents the reaction that occurs: \n AgNO3(aq) + KCl(aq) -> AgCl(s) + KNO3(aq) . This is a precipitation reaction, as AgCl is an insoluble compound that precipitates out of the solution.
03

Identifying the spectator ions

In a precipitation reaction, the ions that do not participate in the formation of the precipitate are called spectator ions. These ions remain in the solution and do not undergo any change. Looking at the equation, we can see that the K+ and NO3- ions do not participate in the reaction. Thus, these are the spectator ions.

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Most popular questions from this chapter

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