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.
![solo 169
SF4
Chemistry 1
For each of the 4 molecules below, draw the Lewis structure and then determine:
the number of electron groups around the central atom and the number of lone pairs
the electron geometry of the molecule
the molecular geometry of the molecule
d. the hybridization on each atom in the structure
AsCl3
BH3
IC14](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F38e21668-df36-4535-9b97-aa4a56ba16f0%2Fb6469718-5d82-415a-ad19-0e8b9eb4a26d%2Fqp1tbxm_processed.jpeg&w=3840&q=75)
![General Chemistry 1
Now let's try and visualize the hybridization in an organic molecule:
The following compound is part of a class of organic compounds known as oximes:
H3C-CH=N-OH
The order of atoms shown above indicates their connectivity within the molecule. There is a
double bond between C and N and all the other bonds are single bonds. This structure does not
indicate the presence of lone pairs so you must determine them yourself.
1. To begin, draw the complete Lewis structure for this oxime and calculate formal charges for
all atoms.
2. Write the hybridization on C, N, and O atoms in your Lewis structure in #1.
Please explain each one of your choices:
6](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F38e21668-df36-4535-9b97-aa4a56ba16f0%2Fb6469718-5d82-415a-ad19-0e8b9eb4a26d%2Fv7bzwq_processed.jpeg&w=3840&q=75)
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