BIOCHEMISTRY
PROPERTIES OF WATER
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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The high surface tension of liquid water keeps the ice on top
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The ionic bonds between the molecules in ice prevent the ice from sinking
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Ice always has air bubbles that keep it afloat
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Hydrogen bonds stabilize and keep the molecules of ice farther apart than the water molecules of the liquid water
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The crystalline lattice of ice causes it to be denser than liquid water
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Detailed explanation-1: -Since the ice is lighter than water so the water displaces the ice and causes it to float on top. The hydrogen bonding and the cage-like structure of ice are responsible to have lower density.
Detailed explanation-2: -When water cools, the hydrogen bonds adjust to hold the negatively-charged oxygen atoms apart, which prevents the ice from becoming any denser. So for water, the density actually decreases along with a decrease in temperature-causing ice to be less dense than water!
Detailed explanation-3: -When water freezes, water molecules form a crystalline structure maintained by hydrogen bonding. Solid water, or ice, is less dense than liquid water. Ice is less dense than water because the orientation of hydrogen bonds causes molecules to push farther apart, which lowers the density.
Detailed explanation-4: -Ice floats because it is less dense than the water. Something denser than water, like a rock, will sink to the bottom. To be able to float, an object must displace fluid with a weight equal to its own weight. The fact that ice floats in water is a bit strange, because most substances are denser when they’re solids.
Detailed explanation-5: -Because frozen water is less dense than liquid water, the frozen water will not sink. Water’s triangular molecule shape, combined with it’s lower density allow it to float. Compared to liquid water, ice has a lower density and a bigger volume. That is, it is lighter and bigger than the same amount of liquid water.