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Praxis II: Chemistry Exam Prep

Category - 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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