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. Write the net ionic equation for the reaction. (Use the solubility rules provided in the OWL Preparation Page to determine the solubility of compounds.)

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)