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17. The figure below shows how the temperature of a substance changed as it was heated. Which segment of the graph indicates that the substance was undergoing a change of state? * D B A Time (minutes) a. A to B b. B to C C. C to D d. E to F 18. Ground-level fogs are usually observed in mountainous areas like Baguio, Sagada and Tagaytay. Which of these could have caused the formation of fogs? * a. Molecules of gas changed into liquid b. Molecules of gas changed into a gas C. Molecules of liquid changed into a gas d. Molecules of solid changed into a gas 19. A pot of water is placed on a hot stove. Small bubbles begin to appear at the bottom of the pot. The bubbles rise to the surface of the water and seem to pop or disappear. What are the bubbles made of? * а. air b. carbon and oxygen C. heat d. oxygen and hydrogen 20. The boiling point of water at sea level is 100 °C. What happens to the boiling point of water at higher altitudes? * a. Boiling point of a liquid decreases b. Boiling point of a liquid increases C. No change in boiling point Temperature (°C)

17. The figure below shows how the temperature of a substance changed as it was heated. Which segment of the graph indicates that the substance was undergoing a change of state? * D B A Time (minutes) a. A to B b. B to C C. C to D d. E to F 18. Ground-level fogs are usually observed in mountainous areas like Baguio, Sagada and Tagaytay. Which of these could have caused the formation of fogs? * a. Molecules of gas changed into liquid b. Molecules of gas changed into a gas C. Molecules of liquid changed into a gas d. Molecules of solid changed into a gas 19. A pot of water is placed on a hot stove. Small bubbles begin to appear at the bottom of the pot. The bubbles rise to the surface of the water and seem to pop or disappear. What are the bubbles made of? * а. air b. carbon and oxygen C. heat d. oxygen and hydrogen 20. The boiling point of water at sea level is 100 °C. What happens to the boiling point of water at higher altitudes? * a. Boiling point of a liquid decreases b. Boiling point of a liquid increases C. No change in boiling point Temperature (°C)

Chemistry
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Answer number 17 to 20 pls. I dont want to waste my money here.

17. The figure below shows how the temperature of a substance changed as it was heated. Which segment of the graph indicates that the substance was undergoing a change of state? * D E Time (minutes) a. A to B b. B to C C. C to D d. E to F 18. Ground-level fogs are usually observed in mountainous areas like Baguio, Sagada and Tagaytay, Which of these could have caused the formation of fogs? * a. Molecules of gas changed into liquid b. Molecules of gas changed into a gas c. Molecules of liquid changed into a gas d. Molecules of solid changed into a gas 19. A pot of water is placed on a hot stove. Small bubbles begin to appear at the bottom of the pot. The bubbles rise to the surface of the water and seem to pop or disappear. What are the bubbles made of? * а. air b. carbon and oxygen C. heat d. oxygen and hydrogen 20. The boiling point of water at sea level is 100 °C. What happens to the boiling point of water at higher altitudes? * a. Boiling point of a liquid decreases b. Boiling point of a liquid increases c. No change in boiling point Temperature (°C) B.
Transcribed Image Text:17. The figure below shows how the temperature of a substance changed as it was heated. Which segment of the graph indicates that the substance was undergoing a change of state? * D E Time (minutes) a. A to B b. B to C C. C to D d. E to F 18. Ground-level fogs are usually observed in mountainous areas like Baguio, Sagada and Tagaytay, Which of these could have caused the formation of fogs? * a. Molecules of gas changed into liquid b. Molecules of gas changed into a gas c. Molecules of liquid changed into a gas d. Molecules of solid changed into a gas 19. A pot of water is placed on a hot stove. Small bubbles begin to appear at the bottom of the pot. The bubbles rise to the surface of the water and seem to pop or disappear. What are the bubbles made of? * а. air b. carbon and oxygen C. heat d. oxygen and hydrogen 20. The boiling point of water at sea level is 100 °C. What happens to the boiling point of water at higher altitudes? * a. Boiling point of a liquid decreases b. Boiling point of a liquid increases c. No change in boiling point Temperature (°C) B.
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