1. Valence Bond Theory alone can be used to determine that O 2 is paramagnetic.
ID: 1010117 • Letter: 1
Question
1. Valence Bond Theory alone can be used to determine that O2 is paramagnetic.
A) true
B) false
2. All intermolecular forces must be overcome in order for a substance to undergo a phase change from a liquid to a gas.
A) true
B) false
3. a liquid boils when its
A) temperature is equal to 273 K (standard temperature)
B) vapor pressure is equal to, or greater than, the external pressure pushing on it
C) temperature is greater than room temperature
D) vapor pressure is exactly 1 atmosphere
4. A bonding molecular orbital is of lower energy (more stable) than the atomic orbitals from which it was formed.
A) true
B) false
Explanation / Answer
1. Valence bond theory can alone be used to determine O2 is paramagnetic
B) false
2. All intermolecular forces must be overcome in order for a substnace to undergo a phase change from liquid to a gas,
A) True
4. A bonding molecular orbital is of lower energy (more stable)than the atomic orbitals from which it was formed,
A) true
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