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chemistry westcott 1-
7 quiz 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:
All life on earth has evolved from a common, primitive organism
through the process of natural selection.
Falling barometric pressure precedes the onset of bad weather.
My truck's gas mileage has dropped significantly, probably because
it's due for a tune-up. 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?
Microscopic
Neither of
these
Macroscopic Answer: Microscopic
3.
can be broken down by chemical means, whereas
cannot be decomposed by chemical changes. Answer: Compounds, elements
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4. How does an atom differ from a molecule? Answer: An atom consists of particles;
a molecule consists of two or more atoms.
5. sucrose is a Answer: compound
6. A substance composed of molecules each of which contains one
hydrogen atom and onechlorine atom would be a(n) Answer:
Element
Mixture
Compoun
d
None of these Answer: Compound
7. A sulfur atom and a sulfur molecule are not identical. What is the
difference?
A sulfur atom is composed of eight sulfur molecules.
chemistry westcott 1-
7 quiz 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:
All life on earth has evolved from a common, primitive organism
through the process of natural selection.
Falling barometric pressure precedes the onset of bad weather.
My truck's gas mileage has dropped significantly, probably because
it's due for a tune-up. 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?
Microscopic
Neither of
these
Macroscopic Answer: Microscopic
3.
can be broken down by chemical means, whereas
cannot be decomposed by chemical changes. Answer: Compounds, elements
, Contact for further consultation
4. How does an atom differ from a molecule? Answer: An atom consists of particles;
a molecule consists of two or more atoms.
5. sucrose is a Answer: compound
6. A substance composed of molecules each of which contains one
hydrogen atom and onechlorine atom would be a(n) Answer:
Element
Mixture
Compoun
d
None of these Answer: Compound
7. A sulfur atom and a sulfur molecule are not identical. What is the
difference?
A sulfur atom is composed of eight sulfur molecules.
