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The Buffering System of the Blood Is Shown Below

Question 111

Multiple Choice

The buffering system of the blood is shown below. Which of the following equations represents the reaction that occurs when hydroxide is added to this buffer? The buffering system of the blood is shown below. Which of the following equations represents the reaction that occurs when hydroxide is added to this buffer?   A)  CO<sub>2</sub> +  <sup>-</sup> OH → CO<sub>3</sub><sup>2</sup> <sup>-</sup> +<sub> </sub>H<sup>+</sup> B)  H<sub>2</sub>CO<sub>3</sub> +  <sup>-</sup> H → HCO<sub>3</sub> <sup>-</sup>  + H<sub>2</sub>O C)  HCO<sub>3</sub> <sup>-</sup>  +  <sup>-</sup> OH → CO<sub>3</sub><sup>2</sup> <sup>-</sup>  + H<sub>2</sub>O D)  HCO<sub>3</sub> <sup>-</sup>  +  <sup>-</sup> OH → CO<sub>2</sub> + H<sub>2</sub>O<sub>2</sub> E)  H<sub>3</sub>O<sup>+</sup> + <sup>-</sup> OH → 2 H<sub>2</sub>O


A) CO2 + - OH → CO32 - + H+
B) H2CO3 + - H → HCO3 - + H2O
C) HCO3 - + - OH → CO32 - + H2O
D) HCO3 - + - OH → CO2 + H2O2
E) H3O+ + - OH → 2 H2O

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