What is the balanced form of the chemical equation shown below? N2(g) + H2(g) → NH3(g)
A. N2(g) + H2(g) → NH3(g)
B. N2(g) + H2(g) → 2NH(9)
C. N2(9) + 3H2(g)
->
> 2NH3(g)
O D. N2(9) + H2(g) → 2NH3(9)

the number of valence electrons for each molecule or ion is shown beneath the structure. remember hydrogen will not have more than two electrons. this hydrogen is part of a covalent bond (sharing two electrons). a double bond here would cause hydrogen to share four electrons with phosphorus.