The Density of Water Decreases as It Is Cooled from 4.0°C

question 80

Multiple Choice

The density of water decreases as it is cooled from 4.0°C to freezing because __________

• A)water molecules decrease in size as they cool because energy is released.
• B)a regular,repeating network of hydrogen bonds between water molecules is formed.
• C)water molecules become more rigid as they cool.
• D)hydrogen bonds in liquid water are longer than they are in ice.
• E)all substances contract just before freezing.

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Definitions:

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