chem 103 multiple choice questions for final Questions and Answers 2024;full solution pack

Lemon juice is acidic, which is an example of a______? a. physical property b. chemical property c. physical change d. chemical change - Answer-b. chemical property Which measurement contains four significant figures? a. 0.00k km b. 3400 K c. 20.10 mL d. 0.350 L - Answer-c. 20.10 How many significant figures will the answer to the following calculation have? (4.593m - 4.589 m) / 4.489 a. 1 b. 2 c. 3 d. 4 - Answer-a. 1 How many meters are in 25 x 10^-3 kilometers? a. 250 meters b. 0.25 meters c. 25 meters d. 0.025 meters - Answer-c. 25 meters the most common isotope of xenon contains 78 neutrons. what is the atom's mass number?a. 132 b. 78 c. 54 d. 24 - Answer-a. 132 the elements potassium, iron, and arsenic_____. a. are isotopes of each other b. are in the same group of elements c. have the same number of neutrons d. are in the same period of elements - Answer-d. are in the same period of elements