Check ALL that are true of formal charges. Question 14 options: Formal charge can be used to determine the best resonance structure. Formal charges of zero are most preferable. A more negative formal charge should go on a more electronegative atom. A formal charge of -2 is better than a formal charge of 1 for any atom, because negative formal charge is better than positive formal charge.

Okay well gravitational energy is matter forced by gravity making energy though the kinetic energy then the electric energy produces electricity from the kinetic energy and the kinetic energy gets its energy from the gravitational energy. was that the answer you wanted or something else?  

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.