The spectator ion in the reaction Zn(NO3)2+2NH4OH -> 2NH4NO3 + Zn(OH)2 are: Honor Chemistry The spectator ion in the reaction Zn(NO3)2+2NH4OH -> 2NH4NO3 + Zn(OH)2 are: Answer: NH4 and NO3 Learn More : Share this Share on FacebookTweet on TwitterPlus on Google+