Select the correct answer from each drop-down menu. In a voltaic cell, the (anode gains, anode loses, cathode gains, cathode loses) electrons and is oxidized, while the (anode gains, anode loses, cathode gains, cathode loses) electrons and is reduced.

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.

Answer; carbon monoxide (co);

It would be true sodium reacts with water in a violent way