Answer:
![NH_3+H_2O\operatorname{\rightarrow}NH_4OH.]()
Step-by-step explanation:
The reaction between ammonia (NH3) and water (H2O) would be a combination reaction: a combination reaction is a reaction in which two or more substances combine to form a single new substance. Combination reactions can also be called synthesis reactions. The general form of a combination reaction is:

In our case, the product would be ammonium hydroxide (NH4OH):
