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SCMH 1010 Exam 3: Stimulator Questions With All Correct Answers.
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Which of the following represents the most stable arrangement of electrons? a. atoms with completely filled valence shells b. elements that are positioned on the far right column of the periodic table of elements c. inert gases such as helium, neon and argon d. atoms with a total of 2, 10, 18 o...

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  • September 5, 2024
  • 26
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers

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  • electrons

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  • SCMH 1010

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SCMH 1010 Exam 3: Stimulator
Questions With All Correct Answers.
Which of the following represents the most stable arrangement of electrons?

a. atoms with completely filled valence shells

b. elements that are positioned on the far right column of the periodic table of elements

c. inert gases such as helium, neon and argon

d. atoms with a total of 2, 10, 18 or 36 electrons

e. all of the above - Answer e. all of the above



Freezing and boiling are examples of

a. processes that cause physical changes.

b. oxidation/reduction reactions.

c. polymerization.

d. temperature changes that form ionic bonds.

e. processes that cause chemical changes. - Answer a. processes that cause physical changes.



Chemical bonds are

a. the attraction among atoms resulting from the destruction of electrons.

b. an unstable configuration among two or more elements.

c. the redistribution of electrons between atoms, leading to a more stable configuration.

d. sharing of electrons in the lowest energy level.

e. explained in laws of thermodynamics. - Answer c. the redistribution of electrons between atoms,
leading to a more stable configuration.



Which of the following common household products is an acid?

a. detergent

,b. vinegar

c. milk

d. ammonia

e. salt - Answer b. vinegar



Metallic bonds create materials with properties that make them

a. stiff and viscous.

b. malleable.

c. brittle.

d. good insulators.

e. soft and pliable. - Answer b. malleable.



The electrons at the outer level of the atom are called

a. outer field electrons.

b. the atomic number.

c. valence electrons.

d. van de Waals electrons.

e. ionic electrons. - Answer c. valence electrons.



Where would you NOT expect to find plasma?

a. the Sun

b. sealed in a magnetic bottle

c. Pluto

d. neon lights

e. all of the above - Answer c. Pluto



Which state of matter maintains a constant volume but not a fixed shape?

a. gas

b. plasma

, c. liquid

d. crystal

e. solid - Answer c. liquid



Examples of polymers are

a. fur and cellulose.

b. spider webs and plastic.

c. nylon and cotton.

d. some paints, inks, and glues.

e. all of the above - Answer e. all of the above



In which of the following places is more polymerization than depolymerization occurring?

a. silk cocoon

b. cow stomach

c. compost heap

d. art gallery

e. birdbath - Answer a. silk cocoon



To save money, you bought a tougher cut of meat. Which of the following processes will you be using if
you use a meat tenderizer?

a. distillation

b. condensation reaction

c. precipitation

d. dehydration synthesis

e. depolymerization - Answer e. depolymerization



Sodium chloride (NaCl) atoms form a crystal lattice that is held together by

a. hydrogen bonds.

b. salt bonds.

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