And once we bring these bicarbonate ions into the sound, the hemoglobin basically releases those H plus ions. And the H plus ions now combined with the bicarbonate to form back this. So this actually should have this should be H two. So let's just use the color black and this forms the carbonic acid. And now the carbonic acid is broken down in the reverse reaction to basically form the water as well as the carbon dioxide. But remember, about 10% of the carbon dioxide was also being held by the hemoglobin.