The question requires us to write the chemical reaction equation that represents the basic equilibrium for ammonia (NH3).
A general basic equilibrium equation can be written as:
![B_((aq))+H_2O_((l))\to HB^{+_{}}_((aq))+OH^-_((aq))](https://img.qammunity.org/2023/formulas/chemistry/college/yrgondltwxgcvx2fge0rjwntuf0nda2kmj.png)
where the substance B "accpets" a H+ ion and the reaction produces OH- ions as product.
Considering the information above, we can write the following basic equation for NH3:
![NH_3_((aq))+H_2O_((l))\to NH_4^{+_{}}_((aq))+OH^-_((aq))](https://img.qammunity.org/2023/formulas/chemistry/college/2r9zmsvs3q23l0a32lnnsx3k018ga2l0qu.png)
where ammonia receives an H+ ion, forming NH4+ ion and OH- ions.