TEST BANK FOR CHEMISTRY IN FOCUS: A MOLECULAR VIEW OF OUR WORLD, 7TH EDITION, NIVALDO J. TRO

Chapter 01 1. Which of these is true of matter? a. It is the pull of gravity on an object. b. It combines to form atoms. c. It is neither created nor destroyed during a chemical reaction. d. It is directly proportional to weight. e. It is the measure of space occupied by an object. ANSWER:c POINTS:1 DIFFICULTY:Easy QUESTION TYPE: Multiple Choice HAS VARIABLES: False TOPICS:The Scientist and the Artist DATE CREATED: 4/3/2014 7:50 AM DATE MODIFIED: 1/24/2018 7:07 AM 2. Which of these statements is correct? a. The amount of carbon on Earth is essentially constant. b. The amount of carbon on Earth fluctuates with the seasons. c. The amount of carbon on Earth is increasing because of plant and animal growth. d. The amount of carbon on Earth is decreasing because of the consumption of carbon-based fuels. e. All of these are correct. ANSWER: a POINTS: 1 DIFFICULTY: Easy QUESTION TYPE: Multiple Choice HAS VARIABLES: False TOPICS: The Scientist and the Artist DATE CREATED: 4/3/2014 7:50 AM DATE MODIFIED: 1/24/2018 7:08 AM 3. The French chemist Antoine Lavoisier found that the weight of objects before burning and the weight of the products after burning were equal. He noticed that the total weight did not change during a process. Which of these best describes the scenario? a. Lavoisier arrived at a scientific law from observation. b. Lavoisier arrived at a scientific theory from observation.. c. Lavoisier arrived at a scientific theory from a scientific law. d. Lavoisier arrived at a scientific law from a scientific theory. e. Lavoisier arrived at a scientific conclusion from observation. ANSWER: a POINTS: 1 DIFFICULTY: Easy QUESTION TYPE: Multiple Choice HAS VARIABLES: False TOPICS: The Scientist and the Artist DATE CREATED: 4/3/2014 7:50 AM