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

question 34

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 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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