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)
General Chemistry - Standalone book (MindTap Course List)
11th Edition
ISBN:9781305580343
Author:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Publisher:Steven D. Gammon, Ebbing, Darrell Ebbing, Steven D., Darrell; Gammon, Darrell Ebbing; Steven D. Gammon, Darrell D.; Gammon, Ebbing; Steven D. Gammon; Darrell
Chapter11: States Of Matter; Liquids And Solids
Section: Chapter Questions
Problem 11.145QP
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Question
Answer number 17 to 20 pls. I dont want to waste my money here.
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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