Answers

2015-07-01T20:48:10+05:30
Ice floats on water because it has a lower density than water.
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2015-07-01T20:48:31+05:30
As water is cooled down,however,the molecules have less energy and hydrogen bonding takes over.The molecules form a ordered crystal through hydrogen bonding that spaces the molecules farther apart than when they were in a liquid.This makes ice less dense than water allowing it to float.
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