And this ion here, that's negatively charged. So, by the dimension nitric acid, because it could donate NH, it has an extra H. It act as a bronze of lyric acid. Now, notice something interesting. In this reaction, our water acted as an acid, a bronzed larry acid, because it donated NH, right? It gave an H to this guy producing ammonium and became hydroxide itself. So it was a base here I'm sorry, an acid here.