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WESTCOTT Courses
Chemistry Final
Comprehensive
Questions (Frequently
Tested) with Verified
Answers Graded A+
, Contact for further consultation
1. Which one of the following is most similar to a law (as opposed to
a theory or a hypothesis) Answer:
a) Falling barometric pressure precedes the onset of bad weather.
b) My truck's gas mileage has dropped significantly, probably
because it's due for a tune-up.
c)All life on earth has evolved from a common, primitive organism
through the process of natural selection. Answer: Falling barometric pressure
precedes the onset of bad weather.
2. According to one theory, the pressure of a gas increases as its
volume de- creases, because the molecules in the gas have to move a
shorter distance to hit the walls of the container. Does this theory
follow a macroscopic or microscopic description of chemical
behavior?
a) Neither of these
b) Macroscopic
c)Microscopic Answer: Microscopic
3. Liquids can change their shape but solids can not. T/F Answer: True
4.
can be broken down by chemical means, whereas
cannot be decomposed by chemical changes.
a) Elements, Molecules
b) Molecules, elements
c)Compounds, elements
d) Elements, Compounds Answer: Compounds, elements
5. How does an atom differ from a molecule?
a) An atom consists of particles; a molecule consists of two or more
atoms.
b) None of these
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c)An atom can have a variety of compounds.
d) A molecule is made of 4 or more elements. Answer: An atom consists of particles;
a molecule consists of two or more atoms.
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6. Copper is a(n) Answer:
a) Element
b) Mixture
c)None of these
d) Compound Answer: element
7. Sucrose is a(n) Answer:
a) None of these
b) Compound
c)Element
d) Mixture Answer: Compound
8. Air is a(n) Answer:
a) All of these
b) Element
c)Compound
d) Mixture Answer: Mixture
9. A substance composed of molecules each of which contains one
hydrogen atom and one chlorine atom would be a(n) Answer:
a) None of these
b) Mixture
c)Compound
d) Element Answer: Compound
10. A sulfur atom and a sulfur molecule are not identical. What is
the difference?
a) A sulfur atom is composed of four sulfur molecules.
b) A sulfur molecule is composed of four sulfur atoms.
c)A sulfur molecule is composed of eight sulfur atoms.
d) A sulfur atom is composed of eight sulfur molecules. Answer: A sulfur
WESTCOTT Courses
Chemistry Final
Comprehensive
Questions (Frequently
Tested) with Verified
Answers Graded A+
, Contact for further consultation
1. Which one of the following is most similar to a law (as opposed to
a theory or a hypothesis) Answer:
a) Falling barometric pressure precedes the onset of bad weather.
b) My truck's gas mileage has dropped significantly, probably
because it's due for a tune-up.
c)All life on earth has evolved from a common, primitive organism
through the process of natural selection. Answer: Falling barometric pressure
precedes the onset of bad weather.
2. According to one theory, the pressure of a gas increases as its
volume de- creases, because the molecules in the gas have to move a
shorter distance to hit the walls of the container. Does this theory
follow a macroscopic or microscopic description of chemical
behavior?
a) Neither of these
b) Macroscopic
c)Microscopic Answer: Microscopic
3. Liquids can change their shape but solids can not. T/F Answer: True
4.
can be broken down by chemical means, whereas
cannot be decomposed by chemical changes.
a) Elements, Molecules
b) Molecules, elements
c)Compounds, elements
d) Elements, Compounds Answer: Compounds, elements
5. How does an atom differ from a molecule?
a) An atom consists of particles; a molecule consists of two or more
atoms.
b) None of these
, Contact for further consultation
c)An atom can have a variety of compounds.
d) A molecule is made of 4 or more elements. Answer: An atom consists of particles;
a molecule consists of two or more atoms.
, Contact for further consultation
6. Copper is a(n) Answer:
a) Element
b) Mixture
c)None of these
d) Compound Answer: element
7. Sucrose is a(n) Answer:
a) None of these
b) Compound
c)Element
d) Mixture Answer: Compound
8. Air is a(n) Answer:
a) All of these
b) Element
c)Compound
d) Mixture Answer: Mixture
9. A substance composed of molecules each of which contains one
hydrogen atom and one chlorine atom would be a(n) Answer:
a) None of these
b) Mixture
c)Compound
d) Element Answer: Compound
10. A sulfur atom and a sulfur molecule are not identical. What is
the difference?
a) A sulfur atom is composed of four sulfur molecules.
b) A sulfur molecule is composed of four sulfur atoms.
c)A sulfur molecule is composed of eight sulfur atoms.
d) A sulfur atom is composed of eight sulfur molecules. Answer: A sulfur
