The equilibrium constant (Keq) for the hydrolysis of ATP to ADP + Pi is 2x10(e5)M. The concentrations of reactants in cells are: [ATP]=5mM, [ADP]=0.5mM and [Pi]=5mM. Is the reaction at equilibrium in living cells?

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.

Density= mass/volume so 5.1 divided by 4.7 is  5.1 / 4.7 =1.08510638298round to the correct number of sig figs

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