Base your answers to questions 69 through 72 on the information below
and on your knowledge of chemistry.
In 1828, Friedrich Wohler produced urea when he heated a solution of
ammonium cyanate. This reaction is represented by the balanced equation
69 Identify the element in urea that makes it an organic compound. 
70 Determine the gram formula mass of the product. 
71 Write the empirical formula for the product.
in any order, must be consolidated to simplest formula
72 Explain why the balanced equation a conservation of atoms.
|Answer--># of Atoms in equal # of atoms out
are lost or gained in the reaction