H(2)CO(3)(aq)+2H(2)O(l)<->2H(3)O(+)(aq)+CO(3)(2-)(aq) The reaction above takes place by combining the two reactants in a previously evacuated 1-Liter container. It produces a mixture that. 
a) Has a pH less than 7 
b) Is basic 
c) Is neutral 
d) Has a pH greater than 7