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CHM 219 Final 2024/2025 With complete solutions latest update
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CHM 219 Final 2024/2025 With complete solutions latest update
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Chem 219Passed!!
2024/2025
CHM 219 Final
Bond with electronegativity greater than 1.7
ionic
bond with electronegativity difference between 0.5 and 1.7
polar covalent bond
bond with electronegativity difference of 0.5 or less
covalent
bond with electronegativity difference of 0
pure covalent bond
T/F: it is okay for resonance structures to have different numbers of electrons
from one another if the formal charges do not balance out to the same overall
total
false
T/F: Moving double bonds in electron resonance is not allowed, as that would
change the connectivity of the atoms in the molecule
false
T/F: A double-barbed arrow is used when drawing resonance structures to show
that a pair of electrons is moving.
True
T/F: A resonance curved arrow points to where the electrons being distributed
end up
True
Linear bond angle
180 degrees
, Chem 219
Passed!!
2024/2025
electron pair distribution for a linear molecular geometry
2 bonded electron pairs, 0 lone pairs, 2 total electron pairs
Bond angle for bent geometry with 2 bonded pairs, 1 lone pair and 3 total
electron pairs
107
Trigonal planar bond angle
120
electron distribution for trigonal planar
3 bonded pairs, 0 lone pairs, 3 total pairs
trigonal pyramidal bond angle
107
trigonal pyramidal electron distribution
3 bonded pairs, 1 lone pair, 4 total pairs
angular/bent molecular geometry with 2 bonded pairs and 2 lone pairs
105 degrees
trigonal planar bond angle
109.5
electron distribution for trigonal planar geometry
4 bonded pairs of electrons
why was the theory of atomic orbital hybridization developed?
to attempt to explain the conflict between the electron configuration and lewis
dot diagram of an element that sometimes differ in describing where valence
electrons are distributed (into what atomic orbitals) and which electrons are
unpaired (used to make bonds)
Use for a bromine test
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