What happens to the total number of molecules in the system as the pressure is reduced? N2O4(g) 2NO2(g)

They will decrease.
They must stay the same.
They will increase.
The total will fluctuate (increase and decrease).

The answer is bhope this

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.