Addition of sodium stannite solution, Na2Sn(OH)4 to white bismuth hydroxide, Bi(OH)3, results in . Select one: Formation of a deep-blue bismuth metal Precipitation of black bismuth hydroxide Reduction to black bismuth metal Formation of a red-brown bismuth metal

Ais your answer to 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.

C. definite shape, definite volume. that is a solid.