Which of the Following Statements Are True of the Bicarbonate

Which of the following statements are true of the bicarbonate buffer system? (Read carefully and select all of the correct statements.)

A) This buffer system is found in the blood.
B) Buffers are chemicals that can create large changes in pH when needed.
C) A disadvantage of this system is that it works very slowly.
D) The weak acid part of the system is NaHCO₃.
E) H₂CO₃ ionizes to HCO₃^- and H₂.
F) When this buffer system buffers a strong base, water is formed.