2
CHEMISTRY 1301 Exam 3 with verified detailed || || || || || || ||
solutions
Which of the following compounds have resonance structures? - ✔✔O3
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Consider the Lewis structures for the compound SO3 and the polyatomic ions SO32- and SO42-.
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Which of these would exist as a set of resonance structures? - ✔✔SO3 only
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What is the angle between electron groups in the linear electron geometry? - ✔✔180
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What is the angle between electron groups in the trigonal planar electron geometry? - ✔✔120
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What is the angle between electron groups in the tetrahedral geometry? - ✔✔109.5
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What is the electron geometry if you have 2 electron groups around the center atom? - ✔✔linear
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What is the electron geometry if you have 3 electron groups around the center atom? -
|| || || || || || || || || || || || || || || ||
✔✔trigonal planar ||
What is the molecular geometry if you have 3 single bonds and 1 lone pair around the central
|| || || || || || || || || || || || || || || || || ||
atom? - ✔✔trigonal pyramidal
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Which of the following compounds would have a linear molecular geometry?
|| || || || || || || || || ||
|| 1. N2
||
|| 2. H2S
||
|| 3. CO2 - ✔✔1 and 3 only
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, 2
What is the molecular geometry of carbon dioxide, CO2? - ✔✔linear
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What is the correct Lewis structure for CN⁻? - ✔✔[: C≡ N :]⁻
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Which symbol should be used between two structures that represent resonance structures? -
|| || || || || || || || || || || || ||
✔✔↔
Which of the statements about light is FALSE? - ✔✔all of the above statements are true
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The distance between adjacent wave crests is called - ✔✔wavelength
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The number of cycles of a wave that passes a stationary point in one second is called its -
|| || || || || || || || || || || || || || || || || || ||
✔✔frequency
Which color of the visible spectrum has the longest wavelength (750 nm)? - ✔✔red
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Which color of the visible spectrum has photons with the most energy? - ✔✔violet
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Which form of electromagnetic radiation has the highest frequency? - ✔✔gamma waves
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Which form of electromagnetic radiation has the lowest frequency? - ✔✔radio waves
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The n = ________ principal shell is the lowest that may contain a d-subshell. - ✔✔3
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Which subshell letter corresponds to a spherical orbital? - ✔✔s
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"When filling orbitals of equal energy, electrons fill them singly first with parallel spins." This is
|| || || || || || || || || || || || || || || ||
known as: - ✔✔Hund's Rule
|| || || ||
CHEMISTRY 1301 Exam 3 with verified detailed || || || || || || ||
solutions
Which of the following compounds have resonance structures? - ✔✔O3
|| || || || || || || || ||
Consider the Lewis structures for the compound SO3 and the polyatomic ions SO32- and SO42-.
|| || || || || || || || || || || || || || ||
Which of these would exist as a set of resonance structures? - ✔✔SO3 only
|| || || || || || || || || || || || ||
What is the angle between electron groups in the linear electron geometry? - ✔✔180
|| || || || || || || || || || || || ||
What is the angle between electron groups in the trigonal planar electron geometry? - ✔✔120
|| || || || || || || || || || || || || ||
What is the angle between electron groups in the tetrahedral geometry? - ✔✔109.5
|| || || || || || || || || || || ||
What is the electron geometry if you have 2 electron groups around the center atom? - ✔✔linear
|| || || || || || || || || || || || || || || ||
What is the electron geometry if you have 3 electron groups around the center atom? -
|| || || || || || || || || || || || || || || ||
✔✔trigonal planar ||
What is the molecular geometry if you have 3 single bonds and 1 lone pair around the central
|| || || || || || || || || || || || || || || || || ||
atom? - ✔✔trigonal pyramidal
|| || ||
Which of the following compounds would have a linear molecular geometry?
|| || || || || || || || || ||
|| 1. N2
||
|| 2. H2S
||
|| 3. CO2 - ✔✔1 and 3 only
|| || || || || ||
, 2
What is the molecular geometry of carbon dioxide, CO2? - ✔✔linear
|| || || || || || || || || ||
What is the correct Lewis structure for CN⁻? - ✔✔[: C≡ N :]⁻
|| || || || || || || || || || || ||
Which symbol should be used between two structures that represent resonance structures? -
|| || || || || || || || || || || || ||
✔✔↔
Which of the statements about light is FALSE? - ✔✔all of the above statements are true
|| || || || || || || || || || || || || || ||
The distance between adjacent wave crests is called - ✔✔wavelength
|| || || || || || || || ||
The number of cycles of a wave that passes a stationary point in one second is called its -
|| || || || || || || || || || || || || || || || || || ||
✔✔frequency
Which color of the visible spectrum has the longest wavelength (750 nm)? - ✔✔red
|| || || || || || || || || || || || ||
Which color of the visible spectrum has photons with the most energy? - ✔✔violet
|| || || || || || || || || || || || ||
Which form of electromagnetic radiation has the highest frequency? - ✔✔gamma waves
|| || || || || || || || || || ||
Which form of electromagnetic radiation has the lowest frequency? - ✔✔radio waves
|| || || || || || || || || || ||
The n = ________ principal shell is the lowest that may contain a d-subshell. - ✔✔3
|| || || || || || || || || || || || || || ||
Which subshell letter corresponds to a spherical orbital? - ✔✔s
|| || || || || || || || ||
"When filling orbitals of equal energy, electrons fill them singly first with parallel spins." This is
|| || || || || || || || || || || || || || || ||
known as: - ✔✔Hund's Rule
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