When heated, lithium reacts with nitrogen to form lithium nitride: 6li(s) + n2(g) → 2li3n(s). a) what is the theoretical yield of li3n in grams when 12.3 g of li is heated with 33.6 g of n2? b) if the actual yield of li3n is 5.45 g, what is the percent yield of the reaction?

The metal is named first

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.