Hydrogen chloride reacts with water to produce an ion with the chemical formula H3O+. An H3O+ ion has one dative covalent bond. Explain how the bond is formed.
We can't draw Lewis dot structure on this forum. I can try this way.
Draw the Lewis dot structure for H2O. You have O with : on the left, top, bottom, right. An H goes on the left and the bottom which leaves the two electrons on the top and right undisturbed. Now a H ion (no electron and with a +1 charge) in and occupies one of those lone pairs of electrons. This is the dative bond (I prefer to call them coordinate covalent or just coordinate bonds. YOu can look on google and find the Lewis structure to augment this explanation.