Consider the molecules — BrF5. A. Draw the best Lewis structure for this molecule. Label any atoms with nonzero formal charge. B. Label each bond angle. As part of your answer be sure to include if it is more or less than the ideal bond angle. C. What is the electron geometry around the bromine atom? D. Are the bonds in the molecule polar? E. Is the overall molecule polar? — CH2 F2 . A. Draw the best Lewis structure for this molecule. B. Label each bond angle. Answers for A-D here: C. Redraw the shape of the molecule. Draw all dipoles. D. Is the overall molecule polar? — Consider the molecule CH2 CF2 . A. Draw the best Lewis structure for this
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.
Consider the molecules
— BrF5.
A. Draw the best Lewis structure for this molecule. Label any atoms with nonzero formal charge.
B. Label each bond angle. As part of your answer be sure to include if it is more or less than the ideal bond angle.
C. What is the electron geometry around the bromine atom?
D. Are the bonds in the molecule polar?
E. Is the overall molecule polar?
— CH2 F2 .
A. Draw the best Lewis structure for this molecule.
B. Label each bond angle. Answers for A-D here:
C. Redraw the shape of the molecule. Draw all dipoles.
D. Is the overall molecule polar?
— Consider the molecule CH2 CF2 .
A. Draw the best Lewis structure for this molecule.
B. Label each bond angle.
C. Redraw the shape of the molecule (according to the exacting specifications of your instructor). Draw all dipoles.
D. Is the overall molecule polar?
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