Fluorine has a covalent oxide called difluorine oxide, F20. the oxygen atom is covalently to each fluorine atom.
Draw a dot and cross diagram of F20 and predict the bond angle in the oxide. Explain your
prediction.
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They are all solids.

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.

Answer:

5.6⋅10−^19  j

do you need the explaination?