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The density of ice is 0.9167 g/cm3 at 0 C, whereas water has a density of 0.9998 g/cm at the same temperature. Liquid water is densest, essentially 1.00 g/cm , at 4 C and becomes less dense as the water molecules begin to form the hexagonal crystals of ice as the freezing point is reached.
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Dear Bitu, In Simple and easy words:- 1. As water is boiled, kinetic energy causes the hydrogen bonds to break completely and allows water molecules to escape into the air as gas (steam or water vapour). 2. When water freezes, water molecules form a crystalline structure maintained by hydrogen bonding. 3.... read more
Dear Bitu, In Simple and easy words:- 1. As water is boiled, kinetic energy causes the hydrogen bonds to break completely and allows water molecules to escape into the air as gas (steam or water vapour). 2. When water freezes, water molecules form a crystalline structure maintained by hydrogen bonding. 3. Solid water, or ice, is less dense than liquid water. 4. Ice is less dense than water because the orientation of hydrogen bonds causes molecules to push farther apart, which lowers the density. 5.For other liquids, solidification when the temperature drops includes the lowering of kinetic energy, which allows molecules to pack more tightly and makes the solid denser than its liquid form. 6.Hydrogen bonding makes ice less dense than liquid water. The lattice structure of ice makes it less dense than the freely flowing molecules of liquid water, enabling it to float on water. If you think i provide you desired answers regarding your question asked above then please don't forget to give your valuable reviews on my "Urban pro wall (ID)". For further information my contact no. and mail ID is also mentioned there. And Please Don't hesitate to ask your doubts (or) queries regrading your studies. I Always feel happy to help other students. To Follow me my Instagram ID is "dr.basuofficial.psychic". Yours Friendly Dr. Basant Ramawat read less
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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.
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Simple, It's the Volume which is directly proportional to the weight of substance. Hope this helps you understand. Thanks!
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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.
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When water is a liquid, the molecules all are piled together randomly, but they form a fairly compact mass. When water freezes, it takes on a crystalline structure: the molecules line up end-to-end by the hydrogen atoms, so the same amount (and the same mass) of water ends up occupying more space when... read more
When water is a liquid, the molecules all are piled together randomly, but they form a fairly compact mass. When water freezes, it takes on a crystalline structure: the molecules line up end-to-end by the hydrogen atoms, so the same amount (and the same mass) of water ends up occupying more space when it freezes than it does when it's a liquid. The mass stays the same, but the volume increases, so the density decreases. read less
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Ice is less dense than water because the orientation of hydrogen bonds causes molecules to push farther apart, which lowers the density.
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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.
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Ice is less density than water because the orientation of hydrogen bonds causes molecules to push farther apart, which lowers the density.
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Chemistry Teacher

H2O in solid state can create more number of H-bonds up to 4. As a result occupies more space, this results in increase of volume and decrease in its density.
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