Determine the heat of reaction for the reaction: 4NH,(g) + 502(g) → 4NO(g) + 6H2O(g)
Using the following sets of reactions:
N2(g) + O2(g) → 2NO(g) AH = 180.6 kJ
N2(g) + 3H2(g) → 2NH3(g) AH = -91.8 kJ
2H.) +0,() → 2H 0(g) AH = -483.7 kJ

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.

it's c. elements are placed in rows based on how may valencies electrons have.

2b2t

explanation:

2b2t