Which is a spectator ion in the reaction between AgNO3 (aq) and KCl (aq) ?

A) Cl - (aq)

B) NO3 - (aq)

C) Ag + (aq)

D) OH - (aq)

In the above reaction the Nitrate ions (NO3^-) and Potassium ion (K^+) are not actively involved in the reaction, hence they are spectactor ions. The only actively involved ions in the solution are the silver ions (Ag+) and the Choride ions (Cl^-), they react to form a white precipitate of Silver chloride as follows:

Ag + (aq) + Cl - (aq) = >AgCl (s)

. In the above scenario, the required answer is only NO3^ - (aq)