CHEM 101 Final Ivy Tech Test Questions and Answers
Graded A
What is the definition of a scientific theory? - The distance between the two hydrogen atoms in
ANSWER -a model that explains the a molecule of water is 0.000000000172 m.
underlying reasons for observations and laws Express this distance in scientific notation. -
ANSWER -1.72 x 10-10 m
What term best describes a brief statement that
summarizes many past observations and How many grams are in 1.48 x 107 μg? -
predicts new ones? - ANSWER -scientific ANSWER -14.8
law
The correct decimal representation of 6.453 x
Which of the following is an example of a 103 is: - ANSWER -6,453
scientific law? - ANSWER -In a chemical
reaction, matter is neither created nor destroyed.
How many significant digits should be reported in
the answer to the following question?
Which of the following would be considered a (4.3-3.7) x 12.3= - ANSWER -1
theory? - ANSWER -Helium balloons float
because helium is less dense than air.
The correct scientific notation for the number
0.00050210 is: - ANSWER -5.0210 x 10-4
The key to success in chemistry is: -
ANSWER -all of the above
Which measurement below represents the
heaviest mass? - ANSWER -1 Mg
A plastic block has dimensions of 2.2 cm x 3.0
cm x 1.5 cm and a mass of 12.4 grams. Will the
block float in water and why? - ANSWER -
No, because the density of the block is 1.3 g/mL Determine the answer to the following equation
which is greater than the density of water. with correct number of significant figures:
2.02+8.102-0.0297= - ANSWER -10.09
Given the density of Au is 19.3 g/cm3, determine
the mass of gold (in grams) in an ingot with the A lead ball has a mass of 55.0 grams and a
dimensions of 10.0 in x 4.00 in x 3.00 in. - density of 11.4 g/cm3. What is the volume of the
ANSWER -3.80 x 104 ball? - ANSWER -4.82 mL
, CHEM 101 Final Ivy Tech Test Questions and Answers
Graded A
form hydrogen and oxygen under electrolysis
When the value 4.449 is rounded to two conditions.
significant figures, the number should be
reported as: - ANSWER -4.4
Which of the following is a homogeneous
mixture? - ANSWER -stainless steel
The correct number of significant figures in the
number 865,000 is: - ANSWER -ambiguous
When methane is burned with oxygen the
products are carbon dioxide and water. If you
How many inches are in 2.80 ft? - produce 36 grams of water and 44 grams of
ANSWER -33.6 carbon dioxide from 16 grams of methane, how
many grams of oxygen were needed for the
reaction? - ANSWER -64
Which of the following would NOT be considered
a correct conversion factor? - ANSWER -1
pair of shoes = 1 shoe Which of the following statements about matter is
FALSE? - ANSWER -Matter is smooth and
continuous.
Suppose a boat engine leaks 938 mL of oil into a
lake. The mass of this spilled oil is 823 g. The oil
will not mix with the lake water. Which statement Which of the following items is a chemical
is true? - ANSWER -The oil will float property? - ANSWER -the tarnishing of a
because its density of 0.877 g/mL is less than copper statue
the density of water.
Which state of matter has atomic spacing that is
Which state of matter has indefinite shape and is close together and definite shape? -
compressible? - ANSWER -gas ANSWER -solid
A solution is an example of a (an): - All of the following can be considered physical
ANSWER -homogeneous mixture properties EXCEPT: - ANSWER -
flammability
Which of the following is NOT an example of a
physical property? - ANSWER -Water can Which of the following elements has an atomic
number of 4? - ANSWER -Be
Graded A
What is the definition of a scientific theory? - The distance between the two hydrogen atoms in
ANSWER -a model that explains the a molecule of water is 0.000000000172 m.
underlying reasons for observations and laws Express this distance in scientific notation. -
ANSWER -1.72 x 10-10 m
What term best describes a brief statement that
summarizes many past observations and How many grams are in 1.48 x 107 μg? -
predicts new ones? - ANSWER -scientific ANSWER -14.8
law
The correct decimal representation of 6.453 x
Which of the following is an example of a 103 is: - ANSWER -6,453
scientific law? - ANSWER -In a chemical
reaction, matter is neither created nor destroyed.
How many significant digits should be reported in
the answer to the following question?
Which of the following would be considered a (4.3-3.7) x 12.3= - ANSWER -1
theory? - ANSWER -Helium balloons float
because helium is less dense than air.
The correct scientific notation for the number
0.00050210 is: - ANSWER -5.0210 x 10-4
The key to success in chemistry is: -
ANSWER -all of the above
Which measurement below represents the
heaviest mass? - ANSWER -1 Mg
A plastic block has dimensions of 2.2 cm x 3.0
cm x 1.5 cm and a mass of 12.4 grams. Will the
block float in water and why? - ANSWER -
No, because the density of the block is 1.3 g/mL Determine the answer to the following equation
which is greater than the density of water. with correct number of significant figures:
2.02+8.102-0.0297= - ANSWER -10.09
Given the density of Au is 19.3 g/cm3, determine
the mass of gold (in grams) in an ingot with the A lead ball has a mass of 55.0 grams and a
dimensions of 10.0 in x 4.00 in x 3.00 in. - density of 11.4 g/cm3. What is the volume of the
ANSWER -3.80 x 104 ball? - ANSWER -4.82 mL
, CHEM 101 Final Ivy Tech Test Questions and Answers
Graded A
form hydrogen and oxygen under electrolysis
When the value 4.449 is rounded to two conditions.
significant figures, the number should be
reported as: - ANSWER -4.4
Which of the following is a homogeneous
mixture? - ANSWER -stainless steel
The correct number of significant figures in the
number 865,000 is: - ANSWER -ambiguous
When methane is burned with oxygen the
products are carbon dioxide and water. If you
How many inches are in 2.80 ft? - produce 36 grams of water and 44 grams of
ANSWER -33.6 carbon dioxide from 16 grams of methane, how
many grams of oxygen were needed for the
reaction? - ANSWER -64
Which of the following would NOT be considered
a correct conversion factor? - ANSWER -1
pair of shoes = 1 shoe Which of the following statements about matter is
FALSE? - ANSWER -Matter is smooth and
continuous.
Suppose a boat engine leaks 938 mL of oil into a
lake. The mass of this spilled oil is 823 g. The oil
will not mix with the lake water. Which statement Which of the following items is a chemical
is true? - ANSWER -The oil will float property? - ANSWER -the tarnishing of a
because its density of 0.877 g/mL is less than copper statue
the density of water.
Which state of matter has atomic spacing that is
Which state of matter has indefinite shape and is close together and definite shape? -
compressible? - ANSWER -gas ANSWER -solid
A solution is an example of a (an): - All of the following can be considered physical
ANSWER -homogeneous mixture properties EXCEPT: - ANSWER -
flammability
Which of the following is NOT an example of a
physical property? - ANSWER -Water can Which of the following elements has an atomic
number of 4? - ANSWER -Be
