Use the particle theory of matter to explain why icing sugar dissolves more rapidly than granular sugar.

Icing sugar dissolves quicker than granulated sugar because of its small fine like particles, icing sugar is made so fine that it almost acts like flour, so its easier to dissolve as it will rapidly dissolve in water due to its bigger surface area. 

The answer is letter c

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.