What would happen if the equilibrium of a weak acid dissociation reaction were upset?

A. The reaction would shift to balance the change.

B. The Ky of the reaction would change.

C. The reaction would not return to equilibrium.

D. Equilibrium concentrations would not change.

Iwould you figure it out but you don't have a picture or in your question as to what the physical property you're looking for is

You would be correct, boiling water does disinfect contamination.    the property of disinfecting means to kill  germs, bacteria and other pathogens or contamination  that might cause an infection or cause a person to become sickly. a couple methods of disinfecting are using soap, other cleaning supplies or by simply "boiling" the contaminate.  the reason why boiling water disinfects certain attributes is because some cells cannot survive the heat and pressure.