Breaking Water

 The OH bond length in water is $0.958\,\dot{A}$

$f_{res}=0.122\cfrac{c}{BL}$

$f_{res}=0.122*\cfrac{299792458}{0.958}*10^{10}$

$\cfrac{f_{res}}{10^{15}}=381.782\,Hz$

This frequency will break water and produce hydrogen and oxygen.