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CEM 141 Exam 1 MSU Pollock (1). Questions & 100% Verified Correct Answers with complete solutions (Latest update $7.99   Add to cart
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CEM 141 Exam 1 MSU Pollock (1). Questions & 100% Verified Correct Answers with complete solutions (Latest update

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CEM 141 Exam 1 MSU Pollock (1). Questions & 100% Verified Correct Answers with complete solutions (Latest update

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  • August 15, 2024
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  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • cem 141 exam 1 msu pollock 1

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CEM 141 Exam 1 MSU Pollock
Rutherford's Planetary model - ANS-Which atomic model(s) would you be able to use as
evidence to support the claim "atoms are composed of mostly empty space?"

Yes because it can be tested through observations and experiments. - ANS-"Does the planet
Venus have phases like the moon?" Is this question a scientific question?

increase because of the repulsive force between like charges. - ANS-As two protons move
toward each other, the potential energy of the system will -

True because by definition a compound must have at least two types of elements. - ANS-One
part of Dalton's Atomic Theory states:
Compounds are formed by combinations of atoms from two or more elements.
Is this statement currently considered to be true or false and why?

All atom contain electrons. - ANS-Thomson discovered that the type of metal used for the
cathode did not affect the behavior of the cathode ray. What claim does this piece of evidence
support?

During a collision energy will be transferred from the surrounding Xe atoms to the system of two
Xe atoms and the stable interaction will be overcome. - ANS-Consider the container of Xe
atoms where two Xe atoms of interest are interacting (the system) and are surrounded by other
Xe atoms in the system. The surrounding Xe atoms have more energy than the system. Which
direction would you predict the energy would be transferred and what would happen?

The electrostatic force would become weaker. - ANS-How would the strength of the electrostatic
force change if the distance between two charged objects increased?

They are both attractive interactions and they both release energy when they are formed. -
ANS-Which of the following statements are true for both LDFs and covalent bonds?

LDFs between the O2 molecules are overcome. - ANS-When oxygen boils -

Atoms of Y interact to form covalent bonds. Covalent bonds are stronger than LDFs and require
more energy to break. - ANS-You are asked to compare the interaction between atoms of two
substances, X and Y. When you look at the graph showing how potential energy changes as the
distance between atoms changes, you notice that substance Y has a much deeper potential
energy well than X. From this information you can conclude-

C. 15.0 g O2
15/16 (O atomic mass) - ANS-Which of these contains the largest number of molecules?

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