AMU CHEM 134 EXAM QUESTIONS
AND ANSWERS
Explain how you could experimentally determine whether the
outside temperature is higher or lower than 0 °C (32 °F) without
using a thermometer? -
correct answer ✅Place a glass of water outside. It will freeze if the
temperature is below 0 °C.
Identify each of the following statements as being most similar to a
hypothesis, a law, or a theory. Explain your reasoning.
(a) The pressure of a sample of gas is directly proportional to the
temperature of the gas.
(b) Matter consists of tiny particles that can combine in specific
ratios to form substances with specific properties.
(c) At a higher temperature, solids (such as salt or sugar) will
dissolve better in water. -
correct answer ✅(a) law (states a consistently observed
phenomenon, can be used for prediction)
(b) theory (a widely accepted explanation of the behavior of
matter)
(c) hypothesis (a tentative explanation, can be investigated by
experimentation)
,AMU CHEM 134 EXAM QUESTIONS
AND ANSWERS
Identify each of the underlined items as a part of either the
macroscopic domain, the microscopic domain, or the symbolic
domain of chemistry.
For those in the symbolic domain, indicate whether they are
symbols for a macroscopic or a microscopic feature.
a.) The mass of a lead pipe is 14 lb.
b.)The mass of a certain chlorine atom is 35 amu.
c.)A bottle with a label that reads Al contains aluminum metal.
d.) Al is the symbol for an aluminum atom. -
correct answer ✅a.) macroscopic
b.) microscopic
c.) Symbolic; microscopic
d.) Symbolic; microscopic
Identify each of the underlined items as a part of either the
macroscopic domain, the microscopic domain, or the symbolic
domain of chemistry. For those in the symbolic domain, indicate
whether they are symbols for a macroscopic or a microscopic
feature.
(a) A certain molecule contains one H atom and one Cl atom.
(b) Copper wire has a density of about 8 g/cm3.
(c) The bottle contains 15 grams of Ni powder.
,AMU CHEM 134 EXAM QUESTIONS
AND ANSWERS
(d) A sulfur molecule is composed of eight sulfur atoms. -
correct answer ✅(a) symbolic, microscopic
(b) macroscopic
(c) symbolic, macroscopic
(d) microscopic
According to one theory, the pressure of a gas increases as its
volume decreases 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? Explain your answer. -
correct answer ✅This theory follows microscopic description
molecules in the gas are determined on microscopic properties
The amount of heat required to melt 2 lbs of ice is twice the
amount of heat required to melt 1 lb of ice. Is this observation a
macroscopic or microscopic description of chemical behavior?
Explain your answer. -
correct answer ✅This is a macroscopic observation.
Explanation:
When you have something that It is depends on the mass, you can
be sure that this is a macroscopic description of chemical behavior,
, AMU CHEM 134 EXAM QUESTIONS
AND ANSWERS
because macroscopic observation can be measured with extensive
magnitudes such as volume, mass, and length.
chemistry -
correct answer ✅study of the composition, properties, and
interactions of matter
hypothesis -
correct answer ✅tentative explanation of observations that acts as
a guide for gathering and checking information
law -
correct answer ✅statement that summarizes a vast number of
experimental observations, and describes or predicts some aspect
of the natural world
macroscopic domain -
correct answer ✅realm of everyday things that are large enough
to sense directly by human sight and touch
microscopic domain -
correct answer ✅realm of things that are much too small to be
sensed directly
AND ANSWERS
Explain how you could experimentally determine whether the
outside temperature is higher or lower than 0 °C (32 °F) without
using a thermometer? -
correct answer ✅Place a glass of water outside. It will freeze if the
temperature is below 0 °C.
Identify each of the following statements as being most similar to a
hypothesis, a law, or a theory. Explain your reasoning.
(a) The pressure of a sample of gas is directly proportional to the
temperature of the gas.
(b) Matter consists of tiny particles that can combine in specific
ratios to form substances with specific properties.
(c) At a higher temperature, solids (such as salt or sugar) will
dissolve better in water. -
correct answer ✅(a) law (states a consistently observed
phenomenon, can be used for prediction)
(b) theory (a widely accepted explanation of the behavior of
matter)
(c) hypothesis (a tentative explanation, can be investigated by
experimentation)
,AMU CHEM 134 EXAM QUESTIONS
AND ANSWERS
Identify each of the underlined items as a part of either the
macroscopic domain, the microscopic domain, or the symbolic
domain of chemistry.
For those in the symbolic domain, indicate whether they are
symbols for a macroscopic or a microscopic feature.
a.) The mass of a lead pipe is 14 lb.
b.)The mass of a certain chlorine atom is 35 amu.
c.)A bottle with a label that reads Al contains aluminum metal.
d.) Al is the symbol for an aluminum atom. -
correct answer ✅a.) macroscopic
b.) microscopic
c.) Symbolic; microscopic
d.) Symbolic; microscopic
Identify each of the underlined items as a part of either the
macroscopic domain, the microscopic domain, or the symbolic
domain of chemistry. For those in the symbolic domain, indicate
whether they are symbols for a macroscopic or a microscopic
feature.
(a) A certain molecule contains one H atom and one Cl atom.
(b) Copper wire has a density of about 8 g/cm3.
(c) The bottle contains 15 grams of Ni powder.
,AMU CHEM 134 EXAM QUESTIONS
AND ANSWERS
(d) A sulfur molecule is composed of eight sulfur atoms. -
correct answer ✅(a) symbolic, microscopic
(b) macroscopic
(c) symbolic, macroscopic
(d) microscopic
According to one theory, the pressure of a gas increases as its
volume decreases 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? Explain your answer. -
correct answer ✅This theory follows microscopic description
molecules in the gas are determined on microscopic properties
The amount of heat required to melt 2 lbs of ice is twice the
amount of heat required to melt 1 lb of ice. Is this observation a
macroscopic or microscopic description of chemical behavior?
Explain your answer. -
correct answer ✅This is a macroscopic observation.
Explanation:
When you have something that It is depends on the mass, you can
be sure that this is a macroscopic description of chemical behavior,
, AMU CHEM 134 EXAM QUESTIONS
AND ANSWERS
because macroscopic observation can be measured with extensive
magnitudes such as volume, mass, and length.
chemistry -
correct answer ✅study of the composition, properties, and
interactions of matter
hypothesis -
correct answer ✅tentative explanation of observations that acts as
a guide for gathering and checking information
law -
correct answer ✅statement that summarizes a vast number of
experimental observations, and describes or predicts some aspect
of the natural world
macroscopic domain -
correct answer ✅realm of everyday things that are large enough
to sense directly by human sight and touch
microscopic domain -
correct answer ✅realm of things that are much too small to be
sensed directly
