Draw the bonding pattern for the third resonance structure of the azide ion, N3. Two of the resonance structures are shown below. (Include double/triple bonds and any formal charges.) Edit Drawing eTextbook and Media :N=N-N²- A How many lone pair electrons are on the central nitrogen atom? # of lone pair electrons on the central nitrogen atom: 2-:N-N=N: B How many lone pair electrons are on the each of the other two nitrogen atoms? # of lone pair electrons on each of the other nitrogen atoms: Why do both bonds of the azide ion have the same length? O The bond lengths are the same because the resonance structure you drew was tetrahedral. O The bond lengths are the same because single, double, and triple bonds are always the same length. O The bond lengths are the same because structures A and B are equivalent and therefore make equal contributions to the hybrid.
Thermochemistry
Thermochemistry can be considered as a branch of thermodynamics that deals with the connections between warmth, work, and various types of energy, formed because of different synthetic and actual cycles. Thermochemistry describes the energy changes that occur as a result of reactions or chemical changes in a substance.
Exergonic Reaction
The term exergonic is derived from the Greek word in which ‘ergon’ means work and exergonic means ‘work outside’. Exergonic reactions releases work energy. Exergonic reactions are different from exothermic reactions, the one that releases only heat energy during the course of the reaction. So, exothermic reaction is one type of exergonic reaction. Exergonic reaction releases work energy in different forms like heat, light or sound. For example, a glow stick releases light making that an exergonic reaction and not an exothermic reaction since no heat is released. Even endothermic reactions at very high temperature are exergonic.
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