In the following reaction:
HCO3- (aq) + H2O (aq) ? H2CO3 (aq) + OH- (aq)
A) HCO3- is an acid and H2CO3 is its conjugate base.
B) H2O is an acid and OH- is its conjugate base.
C) HCO3- is an acid and OH- is its conjugate base.
D) H2O is an acid and H2CO3 is its conjugate base.
E) H2O is an acid and HCO3- is its conjugate base.
Answer: B