If you dissolve OH and NH$_2$ in the same container of water and lower the pH of the solution to 2.0 by adding HCl, would anything happen to the structures of these compounds? Draw the structures of the species present in solution at pH 2.0 (two substances). Draw one structure per sketcher. Add additional sketchers using the drop-down menu in the bottom right corner. Include counter-ions, e.g., Na$^+$, I$^-$, in your submission, but draw them in their own separate sketcher.