A buffer is prepared with
H_(2)CO_(3)
and
NaHCO_(3)
. What is the correct net ionic equation describing what happens when a small amount of HCl is added to the buffer?
HCO_(3)^(-)(aq)+OH^(-)(aq)⇌CO_(3)^(2-)(aq)+H_(2)O(aq)
HCO_(3)^(-)(aq)+H_(2)O(l)⇌H_(2)CO_(3)(aq)+OH^(-)(aq)
H_(2)CO_(3)(aq)+OH^(-)(aq)⇌HCO_(3)^(-)(aq)+H_(2)O(I)
l