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CEM 141 MSU EXAM PACKAGE DEAL!!
CEM 141 MSU EXAM PACKAGE DEAL!!
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[Mostrar más]Identify and explain the similarities and differences between atoms, molecules, elements, and 
compounds - Atoms: the smallest unit of ordinary matter that forms a chemical element 
Molecules: electrically neutral group of two or more atoms held together by chemical bonds. 
Elements: consists only o...
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Añadir al carritoIdentify and explain the similarities and differences between atoms, molecules, elements, and 
compounds - Atoms: the smallest unit of ordinary matter that forms a chemical element 
Molecules: electrically neutral group of two or more atoms held together by chemical bonds. 
Elements: consists only o...
Describe the relationship between the frequency, wavelength, and velocity (speed) of a wave. - AnswerThe more times the wave is passing through a point in space = a higher frequency, the higher frequency 
creates a smaller wavelength, which is why the smallest wave is a gamma wave, it has the highes...
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Añadir al carritoDescribe the relationship between the frequency, wavelength, and velocity (speed) of a wave. - AnswerThe more times the wave is passing through a point in space = a higher frequency, the higher frequency 
creates a smaller wavelength, which is why the smallest wave is a gamma wave, it has the highes...
change of state from solid -> liquid -> gas ________ energy - Answer-requires 
energy needed to phase change from solid --> liquid --> gas comes from: - Answer-the surroundings 
when phases change from solid --> liquid --> gas, interactions are _______ between molecules - Answerove...
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Añadir al carritochange of state from solid -> liquid -> gas ________ energy - Answer-requires 
energy needed to phase change from solid --> liquid --> gas comes from: - Answer-the surroundings 
when phases change from solid --> liquid --> gas, interactions are _______ between molecules - Answerove...
mole - 6.022 x 10^23 things 
number of particles that allows us to convert from the molecular to the macroscopic level 
limiting reactant/reagent - amount of one of the reactants which limits how much product can be 
formed. smallest amount. 
percent yield - actual/theoretical x 100 
electromagnetic...
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Añadir al carritomole - 6.022 x 10^23 things 
number of particles that allows us to convert from the molecular to the macroscopic level 
limiting reactant/reagent - amount of one of the reactants which limits how much product can be 
formed. smallest amount. 
percent yield - actual/theoretical x 100 
electromagnetic...
Ionization Energy - Answer-energy required to remove an electron from an atom in the gas phase 
Left Side Electrons - Answer-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 el...
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Añadir al carritoIonization Energy - Answer-energy required to remove an electron from an atom in the gas phase 
Left Side Electrons - Answer-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 el...
Why are alpha particles deflected by the nucleus? - Answer-Because both the alpha particles and the 
nucleus are positively charged and so the alpha particle is repelled. 
Is this statement (Dalton's Theory) true or false and why? 
"All atoms of an element are identical and have the same mass and ...
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Añadir al carritoWhy are alpha particles deflected by the nucleus? - Answer-Because both the alpha particles and the 
nucleus are positively charged and so the alpha particle is repelled. 
Is this statement (Dalton's Theory) true or false and why? 
"All atoms of an element are identical and have the same mass and ...
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 - A...
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Añadir al carritoLights 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 - A...
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 energ...
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Añadir al carritoWhich 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 energ...
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 ex...
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Añadir al carritoConsider 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 ex...
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 Fo...
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Añadir al carritoThe 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 Fo...
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