Questions for General, Organic, and Biological Chemistry Structures of Life, 5th Edition - Chapter (1)

General, Organic, and Biological Chemistry Fifth Edition Karen Timberlake Chemistry in Our Lives Chapter 1 Clicker Questions 1. Which of the following is a hypothesis? Drinking soda at night keeps Bob awake. If Bob stops drinking soda at night, he will be able to sleep. Bob doesn’t drink any soda on Monday night. Bob sleeps well on Monday night. Chapter 1 – Chemistry in Our Lives 1. Which of the following is a hypothesis? Drinking soda at night keeps Bob awake. If Bob stops drinking soda at night, he will be able to sleep. Bob doesn’t drink any soda on Monday night. Bob sleeps well on Monday night. Chapter 1 – Chemistry in Our Lives 2. Which of the following is a conclusion? Drinking soda at night keeps Bob awake. If Bob stops drinking soda at night, he will be able to sleep. Bob doesn’t drink any soda on Monday night. Bob sleeps well on Monday night. Chapter 1 – Chemistry in Our Lives 2. Which of the following is a conclusion? Drinking soda at night keeps Bob awake. If Bob stops drinking soda at night, he will be able to sleep. Bob doesn’t drink any soda on Monday night. Bob sleeps well on Monday night. Chapter 1 – Chemistry in Our Lives 3. What is the place value of the 8 in the number 2.378? ones tenths hundredths thousandths Chapter 1 – Chemistry in Our Lives 3. What is the place value of the 8 in the number 2.378? ones tenths hundredths thousandths Chapter 1 – Chemistry in Our Lives 4. What is the place value of the 3 in the number 25.3? ones tenths hundredths thousandths Chapter 1 – Chemistry in Our Lives 4. What is the place value of the 3 in the number 25.3? ones tenths hundredths thousandths Chapter 1 – Chemistry in Our Lives 5. What number occupies the hundredths place in 547.982? 5 4 8 2 Chapter 1 – Chemistry in Our Lives 5. What number occupies the hundredths place in 547.982? 5 4 8 2 Chapter 1 – Chemistry in Our Lives 6. A bag contains 100 jellybeans. If 32 of them are red, what percent of the jellybeans in the bag are red? 0.32% 3.2% 32% 320% Chapter 1 – Chemistry in Our Lives 6. A bag contains 100 jellybeans. If 32 of them are red, what percent of the jellybeans in the bag are red? 0.32% 3.2% 32% 320% Chapter 1 – Chemistry in Our Lives 7. A bouquet of flowers has 4 red roses, 6 pink carnations, and 10 white daisies in it. What percent of the flowers in the bouquet are daisies? 20% 30% 40% 50% Chapter 1 – Chemistry in Our Lives 20% 30% 40% 50% Chapter 1 – Chemistry in Our Lives 7. A bouquet of flowers has 4 red roses, 6 pink carnations, and 10 white daisies in it. What percent of the flowers in the bouquet are daisies? 8. If there are 25 marbles in a box and 9 of them are blue, what percent of the marbles are not blue? 9% 16% 36% 64% Chapter 1 – Chemistry in Our Lives 8. If there are 25 marbles in a box and 9 of them are blue, what percent of the marbles are not blue? 9% 16% 36% 64% Chapter 1 – Chemistry in Our Lives 9. Solve the following equation for x: –4x + 2 = 22 a) x = –5 b) x = –6 c) x = 5 d) x = 6 Chapter 1 – Chemistry in Our Lives 9. Solve the following equation for x: –4x + 2 = 22 a) x = –5 b) x = –6 c) x = 5 d) x = 6 Chapter 1 – Chemistry in Our Lives 10. Solve the following equation for x: 5x – 3 = 3x – 5 a) x = –1 b) x = –4 c) x = 1 d) x = 4 Chapter 1 – Chemistry in Our Lives 10. Solve the following equation for x: 5x – 3 = 3x – 5 a) x = –1 b) x = –4 c) x = 1 d) x = 4 Chapter 1 – Chemistry in Our Lives 11. Rearrange the following equation to solve for V: PV = nRT a) V = nRT – P b) V = nRT + P c) V = P/nRT d) V = nRT/P Chapter 1 – Chemistry in Our Lives 11. Rearrange the following equation to solve for V: PV = nRT a) V = nRT – P b) V = nRT + P c) V = P/nRT d) V = nRT/P Chapter 1 – Chemistry in Our Lives 12. According to the graph, what temperature was the tea after 60 min? a) 18 °C b) 30 °C c) 36 °C d) 42 °C Chapter 1 – Chemistry in Our Lives 12. According to the graph, what temperature was the tea after 60 min? a) 18 °C b) 30 °C c) 36 °C d) 42 °C Chapter 1 – Chemistry in Our Lives 13. According to the graph, how long did it take the tea to reach 50 °C? a) 20 min b) 30 min c) 40 min d) 50 min Chapter 1 – Chemistry in Our Lives 13. According to the graph, how long did it take the tea to reach 50 °C? a) 20 min b) 30 min c) 40 min d) 50 min Chapter 1 – Chemistry in Our Lives 14. According to the graph, how many minutes did it take for the temperature to drop from 70 °C to 40 °C? a) 8 min b) 30 min c) 42 min d) 50 min Chapter 1 – Chemistry in Our Lives 14. According to the graph, how many minutes did it take for the temperature to drop from 70 °C to 40 °C? a) 8 min b) 30 min c) 42 min d) 50 min Chapter 1 – Chemistry in Our Lives 15. The measurement 127.3 is written in scientific notation as _________. a) 1.273 × 102 b) 12.73 × 102 c) 1.273 × 10–2 d) 12.73 × 10–2 Chapter 1 – Chemistry in Our Lives 15. The measurement 127.3 is written in scientific notation as _________. a) 1.273 × 102 b) 12.73 × 102 c) 1.273 × 10–2 d) 12.73 × 10–2 Chapter 1 – Chemistry in Our Lives 16. The value 3.0 × 108 is equal to ______. a) 0.000000003 b) 0.00000003 c) 30 000 000 d) 300 000 000 Chapter 1 – Chemistry in Our Lives 16. The value 3.0 × 108 is equal to ______. a) 0.000000003 b) 0.00000003 c) 30 000 000 d) 300 000 000 Chapter 1 – Chemistry in Our Lives 17. Which of the following numbers is not expressed in proper scientific notation? a) 5.6 × 10–3 b) 12.6 × 102 c) 4 × 108 d) 6.02 × 1023 Chapter 1 – Chemistry in Our Lives 17. Which of the following numbers is not expressed in proper scientific notation? a) 5.6 × 10–3 b) 12.6 × 102 c) 4 × 108 d) 6.02 × 1023 Chapter 1 – Chemistry in Our Lives 18. The measurement 420 000 m is written in scientific notation as _________. a) 4.00 × 105 m b) 4.25 × 104 m c) 4.20 × 105 m d) 4.25 × 105 m Chapter 1 – Chemistry in Our Lives 18. The measurement 420 000 m is written in scientific notation as _________. a) 4.00 × 105 m b) 4.25 × 104 m c) 4.20 × 105 m d) 4.25 × 105 m Chapter 1 – Chemistry in Our Lives 19. The number 7.13 × 10–5 is equal to _______. a) 0.00000713 b) 0.0000713 c) 0.000713 d) 0.00713 Chapter 1 – Chemistry in Our Lives 19. The number 7.13 × 10–5 is equal to _______. a) 0.00000713 b) 0.0000713 c) 0.000713 d) 0.00713 Chapter 1 – Chemistry in Our Lives