In the laboratory, 50 mL of 0.1 M HCl is mixed with 50 mL of 0.1
M NaOH and the solution is stirred gently. At equilibrium, what
ionic species, if any, will be present in large amounts in the
reaction mixture?
A. Na+ and Cl- only.
B. H3O+ and OH- only.
C. H3O+, OH-, Na+, and Cl-.
D. No ions will be present.