GK
CHEMISTRY
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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As water freezes, it expands and its density decreases.
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As water freezes, it takes up more hydrogen from the atmosphere, causing it to have a greater buoyancy.
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As water freezes, air becomes trapped between the hydrogen bonds of water molecules.
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As water freezes, it takes up more oxygen from the atmosphere, causing it to have a greater buoyancy.
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Detailed explanation-1: -Water expands when it freezes making it less dense than the water from which it freezes. In fact, its volume is a little over 9% greater (or density ca. 9% lower) than in the liquid state. For this reason, ice floats on the water (like an ice cube in a glass of water).
Detailed explanation-2: -The extra hydrogen bonds that occur when water freezes increase the space between molecules, causing a decrease in overall density.
Detailed explanation-3: -The expansion upon freezing comes from the fact that water crystallizes into an open hexagonal form. This hexagonal lattice contains more space than the liquid state.
Detailed explanation-4: -The ice float on water because its density is less than water. The density of ice is. 931 gm-cm-3 and the density of water is. 0 gm-cm-3 .
Detailed explanation-5: -As a result, ice is less dense than the liquid form. Water is the only known non-metallic substance that expands when it freezes; its density decreases and it expands approximately 9% by volume.