When ammonium hydroxide solution (NH4OH) and ethanol (CH3CH2OH) are mixed, they undergo a chemical reaction to form ethylammonium hydroxide ((CH3CH2NH3)OH). The reaction can be represented as follows:

NH4OH + CH3CH2OH → CH3CH2NH3+OH-

In this reaction, the hydroxide ion (OH-) from ammonium hydroxide combines with the hydrogen ion (H+) from ethanol to form water (H2O), while the ammonium ion (NH4+) and the ethanol molecule combine to form ethylammonium hydroxide.

Ethylammonium hydroxide is a weak base and a salt that can dissolve in water. It has a characteristic amine-like odor and is commonly used as a cleaning agent, degreaser, and pH adjuster.

The reaction between ammonium hydroxide and ethanol is an example of a neutralization reaction, where an acid and a base react to form a salt and water. However, it's important to note that while ethanol has an -OH group, it does not behave as a strong acid in this reaction due to the weak acidity of the O-H bond in alcohols.