The conjugate acid in the reaction described in HCl(g) + NH3(aq) → NH4 +(aq) + Cl- (aq) is

A. HCl(g).
B. NH3(aq).
C. NH4+ (aq).
D. Cl-(aq).

I think its B or C?

the answer is C nevermind

Right. C is correct.

NH3 is the base.

The conjugate acid in the reaction HCl(g) + NH3(aq) → NH4+(aq) + Cl-(aq) is NH4+(aq).

In this reaction, HCl is a strong acid that donates a proton (H+) to NH3, which is a weak base. The resulting species NH4+ is the conjugate acid of NH3 because it gained a proton.

To determine the conjugate acid in the reaction HCl(g) + NH3(aq) → NH4+(aq) + Cl-(aq), we need to understand the concept of conjugate acids and bases.

In a chemical reaction, a conjugate acid is formed when a base gains a proton (H+), while a conjugate base is formed when an acid loses a proton.

Looking at the given reaction, HCl(g) is an acid because it donates a proton (H+) to NH3(aq), which acts as a base to accept the proton.

So the conjugate acid would be NH4+(aq) because it is formed by NH3(aq) accepting a proton (H+).

Therefore, the correct answer is C. NH4+(aq).