Multiple Choice
Which of the following best explains how the appearance of a substance can change without it becoming a different substance?
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1. Intro to General Chemistry
Physical & Chemical Changes
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Which change of state is represented when water vapor cools and forms liquid water?
A
Sublimation
B
Condensation
C
Freezing
D
Evaporation
Verified step by step guidance1
Identify the initial and final states of water in the process: water vapor (gas phase) changes to liquid water (liquid phase).
Recall the definitions of phase changes: Sublimation is solid to gas, Freezing is liquid to solid, Evaporation is liquid to gas, and Condensation is gas to liquid.
Match the process of water vapor cooling and forming liquid water to the correct phase change definition.
Recognize that when a gas cools and becomes a liquid, this process is called condensation.
Conclude that the change of state represented is condensation.
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