Carbon dioxide (CO) from tissue cells forms when combined with water. This compound dissociates into H+ and , and participates in an important buffering system in the blood.

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Carbon dioxide (CO2) from tissue cells combines with water to form carbonic acid (H2CO3), which dissociates into hydrogen ions (H+) and bicarbonate ions (HCO3-). This process is a crucial part of the blood buffering system, helping to maintain pH balance.

Carbon Dioxide (CO) from Tissue Cells Forms When Combined with Water