A solution is a homogeneous mixture. In such a mature, a solute is a substance dissolved in another substance, known as solvent. The solution more or less takes on the characteristics of the solvent including its phase gas, liquid or solid)
Identify the Gas-Gas solution

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.

The correct answer is c. orbital shape. "the angular momentum quantum number l describes the shape of an orbital. it corresponds to each orbital type, i.e. (0,1,2,−1)=(s,p,d,f,g,"

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