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CEM 141 MSU Study guides, Class notes & Summaries
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CEM 141 MSU Bundled Exams Questions and Answers Multiple Versions Latest Updates (Complete, Accurate, and Verified)
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CEM 141 MSU Bundled Exams Questions and Answers Multiple Versions Latest Updates (Complete, Accurate, and Verified)
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CEM 141 MSU Exam 2 Questions and Answers Already Passed
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CEM 141 MSU Exam 2 Questions and 
 
Answers Already Passed 
 
Which reaction requires the most energy? 
 
A. N(g) → N+(g) + e - 
B. N+(g) → N2+(g) + e - 
C. F(g) → F+(g) + e - 
D. F+(g) → F2+(g) + e - D. F+(g) → F2+(g) + e - 
 
Fluorine has a higher effective nuclear charge than Nitrogen - so it is harder to remove an 
electron (takes more energy because the electron is more strongly attracted by the nucleus). 
Effective nuclear charge is the same for F and F+ because the number of pro...
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CEM 141 MSU Exam 1 Questions and Answers Already Passed
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CEM 141 MSU Exam 1 Questions and 
 
Answers Already Passed 
 
The statement "If I add cold milk to hot coffee the temperature will decrease," is a? Claim, 
always include an explanation and reasoning to the claim. 
 
Scientific Model Models are used to make testable predictions 
 
How much is a picometer? 0.1 x 10^-12 meters 
 
Atomic Force Microscopy/ Scanning Tunneling Microscopy Microscopes that now allows us 
to view atoms. 
 
Leaves are green in the summer because? A plant's leaves are g...
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CEM 141 MSU Final Exam Questions and Answers Already Passed
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CEM 141 MSU Final Exam Questions and 
 
Answers Already Passed 
 
Consider the question: Is there an attractive force between a pencil and the earth? 
Is this a scientific question? [Yes or No] 
Because 
 
III. It can be tested and answered through observations and experiments 
IV. The answer is already known and we find it online 
V. There is no way to design an experiment to answer this question. Yes because it can be 
tested and answered though observations and experiments 
 
Which of the fol...
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CEM 141 MSU Exam 2 Questions and Answers Already Passed
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CEM 141 MSU Exam 2 Questions and 
 
Answers Already Passed 
 
Lights acts as what? Particle and wave. 
 
Wavelength The distance (m) of waves from peak to peak. Short: x-ray (red), long: infrared 
(blue) 
Short - higher energy 
Long - lower energy 
 
Frequency (V) The number of wavefronts per second. Highest: x-ray 
 
Velocity of Light C = 3.00 X 10^8 
= wavelength X frequency 
 
Amplitude The intensity, height of peaks of waves. Highest: blue light 
 
Energy of Wave (J) Increases as frequency i...
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CEM 141 MSU Exam 3 Latest Update Graded A+
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CEM 141 MSU Exam 3 Latest Update 
 
Graded A+ 
 
Ionization Energy energy required to remove an electron from an atom in the gas phase 
 
Left Side Electrons have weaker attractions to remove electrons 
 
*easier to remove electrons from the left side of the table than the right side* 
 
Does it take MORE or LESS energy to remove an electron from Li than from Na? MORE 
Why? Because as we move down a group, the orbitals become larger and weaker. While going 
across the effective nuclear charge in...
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CEM 141 MSU Exam 1 Solved Questions Correctly Answered!!
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The statement "If I add cold milk to hot coffee the temperature will decrease," is a? - Answer-Claim, 
always include an explanation and reasoning to the claim. 
Scientific Model - Answer-Models are used to make testable predictions 
How much is a picometer? - Answer-0.1 x 10^-12 meters 
Atomic Force Microscopy/ Scanning Tunneling Microscopy - Answer-Microscopes that now allows us to 
view atoms. 
Leaves are green in the summer because? - Answer-A plant's leaves are green in the summer becaus...
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CEM 141 MSU Final Exam Questions With Complete Solutions!!
- Exam (elaborations) • 11 pages • 2024
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Consider the question: Is there an attractive force between a pencil and the earth? 
Is this a scientific question? [Yes or No] 
Because 
III. It can be tested and answered through observations and experiments 
IV. The answer is already known and we find it online 
V. There is no way to design an experiment to answer this question. - Answer-Yes because it can be 
tested and answered though observations and experiments 
Which of the following properties ascribed to atoms by the Greeks do we still...
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CEM 141 MSU Exam 2 Questions And Answers Rated A+ New Update Assured Satisfaction
- Exam (elaborations) • 9 pages • 2024
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Which reaction requires the most energy? 
A. N(g) → N+(g) + e - 
B. N+(g) → N2+(g) + e - 
C. F(g) → F+(g) + e - 
D. F+(g) → F2+(g) + e - - Answer-D. F+(g) → F2+(g) + e - 
Fluorine has a higher effective nuclear charge than Nitrogen - so it is harder to remove an electron (takes 
more energy because the electron is more strongly attracted by the nucleus). Effective nuclear charge is 
the same for F and F+ because the number of protons and core electrons are not changed. However, 
when t...
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CEM 141 MSU Exam 2 Questions with 100% Correct Answers | Verified
- Exam (elaborations) • 12 pages • 2024
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Lights acts as what? - Answer-Particle and wave. 
Wavelength - Answer-The distance (m) of waves from peak to peak. Short: x-ray (red), long: infrared 
(blue) 
Short - higher energy 
Long - lower energy 
Frequency (V) - Answer-The number of wavefronts per second. Highest: x-ray 
Velocity of Light - Answer-C = 3.00 X 10^8 
= wavelength X frequency 
Amplitude - Answer-The intensity, height of peaks of waves. Highest: blue light 
Energy of Wave (J) - Answer-Increases as frequency increases and as wa...
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