Top-Scoring CHEM 101 Final Review – A+
Graded Ivy Tech Exam Prep Guide
What is the definition of a scientific theory? - ✔✔a model that explains the underlying reasons for
observations and laws
What term best describes a brief statement that summarizes many past observations and predicts new
ones? - ✔✔scientific law
Which of the following is an example of a scientific law? - ✔✔In a chemical reaction, matter is neither
created nor destroyed.
Which of the following would be considered a theory? - ✔✔Helium balloons float because helium is less
dense than air.
The key to success in chemistry is: - ✔✔all of the above
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? - ✔✔No, because the density of the block is 1.3 g/mL which is greater than the
density of water.
Given the density of Au is 19.3 g/cm3, determine the mass of gold (in grams) in an ingot with the
dimensions of 10.0 in x 4.00 in x 3.00 in. - ✔✔3.80 x 104
The distance between the two hydrogen atoms in a molecule of water is 0.000000000172 m. Express
this distance in scientific notation. - ✔✔1.72 x 10-10 m
How many grams are in 1.48 x 107 μg? - ✔✔14.8
The correct decimal representation of 6.453 x 103 is: - ✔✔6,453
, How many significant digits should be reported in the answer to the following question?
(4.3-3.7) x 12.3= - ✔✔1
The correct scientific notation for the number 0.00050210 is: - ✔✔5.0210 x 10-4
Which measurement below represents the heaviest mass? - ✔✔1 Mg
Determine the answer to the following equation with correct number of significant figures:
2.02+8.102-0.0297= - ✔✔10.09
A lead ball has a mass of 55.0 grams and a density of 11.4 g/cm3. What is the volume of the ball? -
✔✔4.82 mL
When the value 4.449 is rounded to two significant figures, the number should be reported as: - ✔✔4.4
The correct number of significant figures in the number 865,000 is: - ✔✔ambiguous
How many inches are in 2.80 ft? - ✔✔33.6
Which of the following would NOT be considered a correct conversion factor? - ✔✔1 pair of shoes = 1
shoe
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 is true? - ✔✔The oil will float because its density of 0.877
g/mL is less than the density of water.
Which state of matter has indefinite shape and is compressible? - ✔✔gas
A solution is an example of a (an): - ✔✔homogeneous mixture
Graded Ivy Tech Exam Prep Guide
What is the definition of a scientific theory? - ✔✔a model that explains the underlying reasons for
observations and laws
What term best describes a brief statement that summarizes many past observations and predicts new
ones? - ✔✔scientific law
Which of the following is an example of a scientific law? - ✔✔In a chemical reaction, matter is neither
created nor destroyed.
Which of the following would be considered a theory? - ✔✔Helium balloons float because helium is less
dense than air.
The key to success in chemistry is: - ✔✔all of the above
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? - ✔✔No, because the density of the block is 1.3 g/mL which is greater than the
density of water.
Given the density of Au is 19.3 g/cm3, determine the mass of gold (in grams) in an ingot with the
dimensions of 10.0 in x 4.00 in x 3.00 in. - ✔✔3.80 x 104
The distance between the two hydrogen atoms in a molecule of water is 0.000000000172 m. Express
this distance in scientific notation. - ✔✔1.72 x 10-10 m
How many grams are in 1.48 x 107 μg? - ✔✔14.8
The correct decimal representation of 6.453 x 103 is: - ✔✔6,453
, How many significant digits should be reported in the answer to the following question?
(4.3-3.7) x 12.3= - ✔✔1
The correct scientific notation for the number 0.00050210 is: - ✔✔5.0210 x 10-4
Which measurement below represents the heaviest mass? - ✔✔1 Mg
Determine the answer to the following equation with correct number of significant figures:
2.02+8.102-0.0297= - ✔✔10.09
A lead ball has a mass of 55.0 grams and a density of 11.4 g/cm3. What is the volume of the ball? -
✔✔4.82 mL
When the value 4.449 is rounded to two significant figures, the number should be reported as: - ✔✔4.4
The correct number of significant figures in the number 865,000 is: - ✔✔ambiguous
How many inches are in 2.80 ft? - ✔✔33.6
Which of the following would NOT be considered a correct conversion factor? - ✔✔1 pair of shoes = 1
shoe
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 is true? - ✔✔The oil will float because its density of 0.877
g/mL is less than the density of water.
Which state of matter has indefinite shape and is compressible? - ✔✔gas
A solution is an example of a (an): - ✔✔homogeneous mixture
