Water Is Most Dense and Thus Heaviest at 4°C

question 63

Multiple Choice

Water is most dense and thus heaviest at 4°C.At 0°C,ice forms and can float on liquid water.Suppose ice were most dense at 0^°C.What would happen in a lake at this temperature?

• A)The ice would cover the surface of the aquatic system and would never melt.
• B)The ice would cover the bottom of the aquatic system and would build up in layers over time.
• C)Ice would not form because solids are always less dense than liquids.
• D)The cold temperatures and the subsequent ice formation would prevent hydrogen bonds from forming between the water molecules,thus causing the existing ice crystals to become disassociated from each other.

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