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General Chemistry Test 2 Review Exam 2024/2025 Questions With Completed & Verified Solution.
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General Chemistry Test 2 Review Exam 2024/2025 Questions With Completed & Verified Solution.
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General Chemistry Test #2 ReviewAn unknown gas has a density of 0.9 g•L-1 at 273K and 1 atm. Identify the gas.
A. He
B. Ne
C. Ar
D. Kr
E. Xe
B. Ne
STP=
1 atm
273 K
22.4 L per mole
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Which of the following is the most likely formed compound between atoms X and Y?
Atom X: 1s22s22p63s2
Atom Y: 1s22s22p4
Which of the following is the most likely formed compound between atoms X and Y?Atom X:
1s22s22p63s2Atom Y: 1s22s22p4
A. X3Y
B. X2Y
C. X2Y3
D. XY
E. XY2
, D. XY
Which of the following is the most likely formed compound between atoms X and Y?Atom X:
1s22s22p63s2Atom Y: 1s22s22p4
Which statement best explains why bromine is a liquid and iodine is a solid at STP?
A. At a given temperature, bromine has a higher vapor pressure than iodine
B. Smaller atoms tend to be more polarizable and exhibit greater intermolecular forces
C. Dipole-dipole interactions in iodine are stronger than in bromine
D. London dispersion forces increase as molar mass increases
D. London dispersion forces increase as molar mass increases
A. At a given temperature, bromine has a higher vapor pressure than iodine.
B. Smaller atoms tend to be more polarizable and exhibit greater intermolecular forces.
A. At a given temperature, bromine has a higher vapor pressure than iodine.
While this may be true because bromine is a liquid, it does not explain why bromine is a liquid or
iodine is a solid. Vapor pressures are a result of intermolecular forces and internal energy, not a
cause of physical states of matter. Eliminate [A].
B. Smaller atoms tend to be more polarizable and exhibit greater intermolecular forces.
Larger molecules tend to be more polarizable and exhibit greater intermolecular forces.
Eliminate [B].
Which of the following is NOT a colligative property?
A. Vapor pressure
B. Freezing point
C. Osmotic pressure
D. Boiling point
E. Density
E. Density
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