I understand that when the oxygen molecules are heated up in a pot of water, they will vibrate increasingly as they get hotter. I guess that's what those little bubbles are at the bottom of the pot. At some point, they will suddenly release. Is there a name for this threshold and a way to measure it? And am I correct in thinking that they are pushed up once they reach that certain point (that threshold)? Finally, does this mean that the water is now saturated with (or has excess of) hydrogen?