The reaction between NH4OH (ammonium hydroxide) and Na2CO3 (sodium carbonate) is a double displacement reaction. It results in the formation of ammonium carbonate ((NH4)2CO3) and sodium hydroxide (NaOH).

Here's the balanced chemical equation:

2 NH4OH (aq) + Na2CO3 (aq) → (NH4)2CO3 (aq) + 2 NaOH (aq)

Explanation:

* Ammonium hydroxide (NH4OH) is a weak base, often used in cleaning products and as a reagent in chemical synthesis.

* Sodium carbonate (Na2CO3) is a common salt, often used in laundry detergents, water treatment, and as a food additive.

* Ammonium carbonate ((NH4)2CO3) is a white solid that decomposes easily into ammonia and carbon dioxide. It is used in baking powder and as a fertilizer.

* Sodium hydroxide (NaOH) is a strong base, commonly used in various industries, including chemical production, soap making, and paper manufacturing.

Important Note:

While the reaction proceeds, it is important to note that ammonium hydroxide is a weak base and sodium hydroxide is a strong base. The reaction reaches equilibrium, and the solution will be slightly basic due to the presence of the stronger base, NaOH.