CHEM 103 Final Exam A+ 2024

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 Answer c. 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 Answer a. 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 Answer 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 - Correct 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 - Correct Answer d. 1.0 ML