What volume of 2.50 M HCl in liters is needed to react completely (with nothing left over) with 0.750 L of 0.500 M Na2CO3

What is the gold assay

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.

B. nuclear reactions could first occur.

It's called the falling actionwrong subject by the way