Question

What are the spectator ions in Mg(s) + Zn2+ + 2NO3 → Mg2+ + 2NO3 + Zn(s)?

Answer 1

NO₃⁻.

Step-by-step explanation:

• Spectator ions are the ions that is present in the same form on both sides of a chemical equation (do not change).

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

• The reactants' side contains two ions : Zn²⁺ and NO₃⁻.

• Also, the product's side also contains two ions : Mg²⁺ and NO₃⁻.

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