In the following acid-base reaction,H3O+ is theHCl(g) + H2O(1)→H30+(aq) + CI-(aq)А.BСacidconjugateacidconjugatebase
![In the following acidbase reactionH3O is theHClg H2O1H30aq CIaqАBСacidconjugateacidconjugatebase class=](https://us-static.z-dn.net/files/da6/ecbadc375b7ab678e9757e8ff7ddc25e.png)
When we have an acid-base reaction, the acid will be that substance that donates protons, in the form of H+ ions. The base will be the one that accepts the H+ ions. Now, the base that accepts the protons becomes a potential proton donor, thus becoming a conjugate acid. This is the case with H3O+.
H2O accepts H+ ions, so it is a base and when it becomes H3O+ it becomes a potential H+ proton donor, that is, a conjugate acid.
so, the answer will be B. Conjugate acid