CHEM 103 FINAL EXAM WITH CORRECT QUESTIONS AND ANSWERS 2025

CHEM 103 FINAL EXAM WITH
CORRECT QUESTIONS AND ANSWERS
2025

Which of the following is an example of a physical property?


a. Ability to change color


b. Flammability


c. Density


d. Solubility




Exam 1 - CORRECT-ANSWERSc. Density


Which of the following is evidence of a chemical change?


a. Releasing bubbles of gas


b. Floating in water


c. Crystallization


d. Vaporization


e. None of the above

,Exam 1 - CORRECT-ANSWERSa. Releasing bubbles of gas


According to the metric system, 1 m = 0.001 what?


a. cm


b. mm


c. dm


d. km


e. None of the above




Exam 1 - CORRECT-ANSWERSd. 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 - CORRECT-ANSWERSd. 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 - CORRECT-ANSWERSd. 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 - CORRECT-ANSWERSd. 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