What are properties of the group of elements on the periodic table that have just one valence electron? (2 points) Gas at room temperature
Soft and highly reactive
Unstable and radioactive
Very low reactivity

Ithink this is what you meant. the temperature at which a liquid begins to boil is called the boiling point. the boiling point of water is 212°f or 100°c.  and at that point will start to turn into steam (gas)

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) the increase in atmospheric pressure pushes the walls of the balloon outward thus making it  is the answer.hope i you.