Determina en la siguiente reacción cual es el reactivo limitante y el reactivo en exceso si se tienen 54.8 gramos de AgNO3 y 99.5 gramos de Al 3AgNO_3+Al→Al(NO_3 )_3+3Ag

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.

Naoh + hbr -> nabr (salt) + h2o ca (oh)2 + 2hbr - - - > ca (br)2 + 2h2o

Ithink its called the coefficent.