Electricity flowing through a neon sign is an example of: a. Physical Change
b. Chemical Change

Ethene molecular fórmula= c2h4molecular weight = 29.046g/molhope it : )

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.

Electrons are emitted