CO 2 i vann. CO 2 i vann CO 2 + H 2 0 H 2 CO 3 H 2 CO 3 H + + HCO 3 - HCO 3 - H + + CO 3 2- NaHCO 3 Na + + HCO 3 -. CO 2 i vann. CO 2 + H 2 0 H 2 CO 3 H 2 CO 3 H + + HCO 3 - HCO 3 - H + + CO 3 2- NaHCO 3 Na + + HCO 3 -. - PowerPoint PPT Presentation