a chemist is designing an experiment to investigate the effect of temperature on the rate of a chemical change. suggest a suitable hypothesis for the experiment. Also, list the dependent, independent and controlled variables that can exist in such an investigation

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 answer would be solvent