Apply Coulomb's law qualitatively to describe the interactions of the ions before they dissociate and to describe the attractions between ions and the solvent after the solution forms.

Yes it would be a physical change.

The correct answer is b.hoped i you

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.

The correct answer is "false"