CHEM 103 FINAL EXAM QUESTIONS
ANSWERS WITH COMPLETE
SOLUTIONS GUARANTEED
SUCCESS!!!
Q: Which of the following is classified as a physical property? a. Potential
for color change b. Flammability c. Density d. Solubility
A: ✔️✔️ c. Density
Q: Which observation provides definitive evidence that a chemical change
is occurring? a. Formation of gas bubbles b. Floating on the surface of water c.
Crystallization of a liquid d. Vaporization into a gas e. None of these choices
A: ✔️✔️ a. Formation of gas bubbles
Q: Within the metric system, a single meter (1 m) is equal to 0.001 of
which unit? a. cm b. mm c. dm d. km e. None of these choices
A: ✔️✔️ d. km
Subtract 9.0 x 10³ sec from 2.0 x 10⁴ sec and express the answer in scientific
notation.
a. 1.1 x 10¹ sec
b. 1.1 x 10² sec
c. 1.1 x 10³ sec
d. 1.1 x 10⁴ sec
e. 1.1 x 10⁵ sec
Exam 1 -ANSWER ✔️✔️d. 1.1 x 10⁴ sec
Which of the following amounts is the largest?
a. 1.0 uL
b. 1.0 L
c. 1.0 mL
d. 1.0 ML
e. 1.0 kL
Exam 1 -ANSWER ✔️✔️d. 1.0 ML
, Add 250.0 mL to 5.00 mL and round off the answer.
a. 250 mL
b. 255 mL
c. 256 mL
d. 255.0 mL
e. 255.0 mL
Exam 1 -ANSWER ✔️✔️d. 255.0 mL
If 10.4 mL of mercury has a mass of 0.197 kg, what is the mass in pounds?
a. 89400 lb
b. 0.434 lb
c. 4.51 lb
d. 89.4 lb
e. 4720 lb
Exam 1 -ANSWER ✔️✔️b. 0.434 lb
What is the volume occupied by a 10.0 g sample of gasoline that has a density
of 0.720 g/mL?
a. 0.720 mL
b. 0.0720 mL
c. 1.39 mL
d. 7.20 mL
e. 13.9 mL
Exam 1 -ANSWER ✔️✔️e. 13.9 mL
For the calculation (1.200 x 1.23466 x 1.0986) - 1.33, which is the correct
answer?
a. 0.298
b. 0.3
c. 0.30
d. 0.2977
e. 0.29
Exam 1 -ANSWER ✔️✔️c. 0.30
ANSWERS WITH COMPLETE
SOLUTIONS GUARANTEED
SUCCESS!!!
Q: Which of the following is classified as a physical property? a. Potential
for color change b. Flammability c. Density d. Solubility
A: ✔️✔️ c. Density
Q: Which observation provides definitive evidence that a chemical change
is occurring? a. Formation of gas bubbles b. Floating on the surface of water c.
Crystallization of a liquid d. Vaporization into a gas e. None of these choices
A: ✔️✔️ a. Formation of gas bubbles
Q: Within the metric system, a single meter (1 m) is equal to 0.001 of
which unit? a. cm b. mm c. dm d. km e. None of these choices
A: ✔️✔️ d. km
Subtract 9.0 x 10³ sec from 2.0 x 10⁴ sec and express the answer in scientific
notation.
a. 1.1 x 10¹ sec
b. 1.1 x 10² sec
c. 1.1 x 10³ sec
d. 1.1 x 10⁴ sec
e. 1.1 x 10⁵ sec
Exam 1 -ANSWER ✔️✔️d. 1.1 x 10⁴ sec
Which of the following amounts is the largest?
a. 1.0 uL
b. 1.0 L
c. 1.0 mL
d. 1.0 ML
e. 1.0 kL
Exam 1 -ANSWER ✔️✔️d. 1.0 ML
, Add 250.0 mL to 5.00 mL and round off the answer.
a. 250 mL
b. 255 mL
c. 256 mL
d. 255.0 mL
e. 255.0 mL
Exam 1 -ANSWER ✔️✔️d. 255.0 mL
If 10.4 mL of mercury has a mass of 0.197 kg, what is the mass in pounds?
a. 89400 lb
b. 0.434 lb
c. 4.51 lb
d. 89.4 lb
e. 4720 lb
Exam 1 -ANSWER ✔️✔️b. 0.434 lb
What is the volume occupied by a 10.0 g sample of gasoline that has a density
of 0.720 g/mL?
a. 0.720 mL
b. 0.0720 mL
c. 1.39 mL
d. 7.20 mL
e. 13.9 mL
Exam 1 -ANSWER ✔️✔️e. 13.9 mL
For the calculation (1.200 x 1.23466 x 1.0986) - 1.33, which is the correct
answer?
a. 0.298
b. 0.3
c. 0.30
d. 0.2977
e. 0.29
Exam 1 -ANSWER ✔️✔️c. 0.30
