So, once again, as the H plus ion basically leaves the oxygen we transform the water molecule, a poured nuclear file, into a good nuclear file, a strong nuclear file that hydroxide. And now the carbon dioxide basically enters the active side. Now, as the carbon dioxide enters the active side what happens is the oxygen of that hydroxide attached to the zinc acts as a nuclear file attached the carbon of that carbon dioxide and that displaces one of the pip bonds between carbon and oxygen. And so now, in the next step, we have a full negative charge on one of the oxygens and that will be partially stabilized by the zinc, by the positive charge coming from that zinc. And so we have this interaction, shown in orange that is stabilizing this structure here. So in this step, we see the highly nucleophilic oxygen attacks the carbon of the carbon dioxide forming this bicarbonate intermediate shown here.