Answer:
Fe(s) + Sn²⁺(aq) ⇒ Sn(s) + Fe²⁺(aq)
Explanation:
When solid Fe metal is put into an aqueous solution of Sn(NO₃)₂, solid Sn metal and a solution of Fe(NO₃)₂ result. The resulting molecular equation is:
Fe(s) + Sn(NO₃)₂(aq) ⇒ Sn(s) + Fe(NO₃)₂
The full ionic equation includes all the ions and the species that do not dissociate in water.
Fe(s) + Sn²⁺(aq) + 2 NO₃⁻(aq) ⇒ Sn(s) + Fe²⁺(aq) + 2 NO₃⁻(aq)
The net ionic equation includes only the ions that participate in the reaction (not spectator ions) and species that do not dissociate in water.
Fe(s) + Sn²⁺(aq) ⇒ Sn(s) + Fe²⁺(aq)