Final answer:
The balanced net ionic equation for the reaction between NH4+ and NaOH results in the formation of NH3 and water. The equation is NH4+(aq) + OH-(aq) -> NH3(g) + H2O(l), excluding the Na+ ion as it is a spectator ion.
Step-by-step explanation:
To write the balanced net ionic equation for the reaction between NH4+ and NaOH, we observe the reaction that occurs when ammonium ions (NH4+) react with a strong base such as sodium hydroxide (NaOH). The reaction forms ammonia (NH3) and water (H2O). The balanced molecular equation is: NH4+(aq) + NaOH(aq) → Na+(aq) + NH3(g) + H2O(l) The complete ionic equation shows all soluble ions and compounds in their ionic forms, except molecules or ions that do not dissociate in solution. As Na+ does not participate in the reaction, it is considered a spectator ion and is not included in the net ionic equation, which is: NH4+(aq) + OH-(aq) → NH3(g) + H2O(l)