Chem300 Winter Term Flashcards
1
Q
AX2
A
Linear 180
2
Q
AX3
A
Trigonal Planar 120
3
Q
AX2E1
A
Bent (less than 120 degrees)
4
Q
AX4
A
Tetrahedral 109.5
5
Q
AX3E1
A
Trigonal Pyramidal (less than 109.5 degrees)
6
Q
AX2E2
A
Bent (less than 109.5 degrees)
7
Q
How is bond polarity determined
A
Bond polarity is determined by the electronegativity of the two atoms in a covalent bond
8
Q
What does polar bond indicate?
A
It indicates that electrons are shared unequally between the two atoms
9
Q
Molecular polarity is determined by
A
calculating the dipole moment (M)
10
Q
A polar molecule indicates
A
Charge is asymmetrically distributed throughout the entire molecule
11
Q
Polar molecule
A
M does not equal 0 (bond dipoles don’t cancel)
12
Q
Nonpolar molecules
A
M = 0 (bond dipoles cancel
13
Q
Nonpolar Covalent
A
carbon-hydrogen or 2 of same nonmental
14
Q
polar covalent
A
nonmetal + nonmetal
15
Q
A
