CHEM 101 Final Ivy Tech exam: QUESTION AND ANSWERS UPDATED
CHEM 101 Final Ivy Tech
2025 LATEST
Study online at https://quizlet.com/_7mdvmk
1. What is the definition of a scientific theory? a model that explains
the underlying reasons for
observations and laws
2. What term best describes a brief statement that sum- scientific law
marizes many past observations and predicts new
ones?
3. Which of the following is an example of a scientific In a chemical reaction,
law? matter is neither created
nor destroyed.
4. Which of the following would be considered a theory? Helium balloons float be-
cause helium is less dense
than air.
5. The key to success in chemistry is: all of the above
6. A plastic block has dimensions of 2.2 cm x 3.0 cm x 1.5 No, because the density
cm and a mass of 12.4 grams. Will the block float in of the block is 1.3 g/mL
water and why? which is greater than the
density of water.
7. Given the density of Au is 19.3 g/cm3, determine the 3.80 x 104
mass of gold (in grams) in an ingot with the dimen-
sions of 10.0 in x 4.00 in x 3.00 in.
8. The distance between the two hydrogen atoms in a 1.72 x 10-10 m
molecule of water is 0.000000000172 m. Express this
distance in scientific notation.
9. How many grams are in 1.48 x 107 μg? 14.8
10. The correct decimal representation of 6.453 x 103 is: 6,453
, CHEM 101 Final Ivy Tech
Study online at https://quizlet.com/_7mdvmk
11. How many significant digits should be reported in the 1
answer to the following question?
(4.3-3.7) x 12.3=
12. The correct scientific notation for the number 5.0210 x 10-4
0.00050210 is:
13. Which measurement below represents the heaviest 1 Mg
mass?
14. Determine the answer to the following equation with 10.09
correct number of significant figures:
2.02+8.102-0.0297=
15. A lead ball has a mass of 55.0 grams and a density of 4.82 mL
11.4 g/cm3. What is the volume of the ball?
16. When the value 4.449 is rounded to two significant 4.4
figures, the number should be reported as:
17. The correct number of significant figures in the num- ambiguous
ber 865,000 is:
18. How many inches are in 2.80 ft? 33.6
19. Which of the following would NOT be considered a 1 pair of shoes = 1 shoe
correct conversion factor?
20. Suppose a boat engine leaks 938 mL of oil into a lake. The oil will float because
The mass of this spilled oil is 823 g. The oil will not mix its density of 0.877 g/mL
with the lake water. Which statement is true? is less than the density of
water.
CHEM 101 Final Ivy Tech
2025 LATEST
Study online at https://quizlet.com/_7mdvmk
1. What is the definition of a scientific theory? a model that explains
the underlying reasons for
observations and laws
2. What term best describes a brief statement that sum- scientific law
marizes many past observations and predicts new
ones?
3. Which of the following is an example of a scientific In a chemical reaction,
law? matter is neither created
nor destroyed.
4. Which of the following would be considered a theory? Helium balloons float be-
cause helium is less dense
than air.
5. The key to success in chemistry is: all of the above
6. A plastic block has dimensions of 2.2 cm x 3.0 cm x 1.5 No, because the density
cm and a mass of 12.4 grams. Will the block float in of the block is 1.3 g/mL
water and why? which is greater than the
density of water.
7. Given the density of Au is 19.3 g/cm3, determine the 3.80 x 104
mass of gold (in grams) in an ingot with the dimen-
sions of 10.0 in x 4.00 in x 3.00 in.
8. The distance between the two hydrogen atoms in a 1.72 x 10-10 m
molecule of water is 0.000000000172 m. Express this
distance in scientific notation.
9. How many grams are in 1.48 x 107 μg? 14.8
10. The correct decimal representation of 6.453 x 103 is: 6,453
, CHEM 101 Final Ivy Tech
Study online at https://quizlet.com/_7mdvmk
11. How many significant digits should be reported in the 1
answer to the following question?
(4.3-3.7) x 12.3=
12. The correct scientific notation for the number 5.0210 x 10-4
0.00050210 is:
13. Which measurement below represents the heaviest 1 Mg
mass?
14. Determine the answer to the following equation with 10.09
correct number of significant figures:
2.02+8.102-0.0297=
15. A lead ball has a mass of 55.0 grams and a density of 4.82 mL
11.4 g/cm3. What is the volume of the ball?
16. When the value 4.449 is rounded to two significant 4.4
figures, the number should be reported as:
17. The correct number of significant figures in the num- ambiguous
ber 865,000 is:
18. How many inches are in 2.80 ft? 33.6
19. Which of the following would NOT be considered a 1 pair of shoes = 1 shoe
correct conversion factor?
20. Suppose a boat engine leaks 938 mL of oil into a lake. The oil will float because
The mass of this spilled oil is 823 g. The oil will not mix its density of 0.877 g/mL
with the lake water. Which statement is true? is less than the density of
water.
