For qn 7, all answers are correct. all of them involve a proton exchange
In C, The following Bronsted-Lowry eqns are put in one eqn:
N3- + H2O --> NH^2- + OH- (cbb states)
NH^2- + H2O --> NH2^- + OH- (cbb states)
NH2^- + H2O --> NH3 + OH- (cbb states)
When they are combined these eqns...