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AP Chemistry Exam Prep

Category - AP Chemistry

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Na⁺_(aq) + Cl^-_(aq) + Ag⁺_(aq) + NO₃^-_(aq) --> AgCl_(s) + Na⁺_(aq) + NO₃^-_(aq)

In the equation above, which species are classified as spectator ions?

Na⁺ alone
NO₃^- alone
Na⁺ and NO₃^-
Ag⁺ alone
Ag⁺and Cl^-

Explanation

Answer: Na⁺ and NO₃^-

Spectator ions exist as reactants and products, and they are not consumed in the course of a chemical reaction. Therefore, the spectator ions in this reaction are Na⁺ and NO₃^-.

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