What are the spectator ions in mg(s) + zn2+ + 2no3 → mg2+ + 2no3 + zn(s)?

NO₃⁻.

Explanation:

For the reaction: Mg(s) + Zn²⁺ + 2NO₃⁻ → Mg²⁺ + 2NO₃⁻ + Zn(s),

Because the nitrate anions are present on both sides of the equation, they are spectator ions.

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