Urea Breaks Down

In the case of urea, the $C-N$ bond, $BL=1.37 \,\dot{A}$ 

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

$f_{res}=0.122*\cfrac{299792458}{1.37*10^{-10}}=2.66968*10^{17}\,Hz$

We will use, $\cfrac{f_{res}}{10^{15}}=266.968\, Hz$

What happens to the $NH_2\dot{\,}$ radicals when they broke off?  Possibly form ammonium with water.

$NH_2\dot{\,}+2H_2O\longrightarrow NH_4OH+OH^{-}$

and there are two $NH_2\dot{\,}$ radicals, resulting in two $OH^{-}$,

$CO\dot{\,}+2OH^{-}\longrightarrow CO_2+H_2O$

this is wishful thinking.  We may just have,

$CO\dot{\,}+H_2O\longrightarrow HCOOH$

Formic acid!  And

$NH_2\dot{\,}+H_2O\longrightarrow NH_3+OH^{-}$

and when ammonia reacts with water,

$NH_3+H_2O\longrightarrow NH^{+}_4+OH^{-}$ 

which simplify to the very first reaction equation.  Ammonia, however may just dissolves and remains in water.  It is poisonous to fish.  And,

$CO\dot{\,}\longrightarrow CO$

carbon monoxide!

It is dangerous to breakdown urea using resonance.  However it is only as dangerous as urea breaking down naturally. 

The process is made safe in the presence of plenty of water, an alkaline pH with plentiful of $OH^{-}$ and active carbon.

Urea CN Bond 266-968 Hz

Urea breakdown frequency is best use together with frequencies to breakdown ammonium and ammonia that are formed during the process.  And due to the presence of ammonia and ammonium, frequencies for nitrites and nitrates should also be used.