This state of C—1s22s22p13s1—represents one of the following: either (a) a C+ ion (b) a C- ion (c) the ground state of the C atom (d) an excited state of the C atom. Which one is it? Briefly explain.

D-no effect on the rate

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.

To present informationto make information easily available 

The net force is 100