Water Is Most Dense and Thus Heaviest at 4 $\degree$ CAt 0

question 49

Multiple Choice

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

• A)The ice would cover the bottom of the aquatic system and would build up in layers over time.
• B)Ice would not form because solids are always less dense than liquids.
• C)The ice would cover the surface of the aquatic system and would never melt.
• 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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