Q:

Does ice weigh more than water?

A:

Quick Answer

In general, if ice and water have the same volume, then the ice weighs less. This is because ice is less dense than water and occupies more space. Therefore, a gallon of ice weighs less than a gallon of water.

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Full Answer

When water freezes into ice, the individual water molecules expand to occupy more space, increasing in volume by about 9 percent. As the liquid turns into a crystalline solid, the water molecules stay expanded and mesh together to form a solid. Due to this phenomenon, the same volume of ice and water have different masses and different densities. For this reason, ice floats in water.

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Related Questions

  • Q:

    Why is ice less dense than water?

    A:

    When water is frozen into ice, the change in temperature creates excess hydrogen bonds between water molecules that increase the space between the molecules. The additional space created reduces the density of the water as it freezes, making ice less dense than water. Rather than the molecules packing more tightly together and creating a heavier density, as water freezes the hydrogen bonds increase from a 3.4-molecule bond to a 4-molecule bond, which creates the excess space and reduced density in ice.

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  • Q:

    Why does ice have a lower density than water?

    A:

    The hydrogen bonding gives water a structure with considerable space between the molecules, making it expand in size and become less dense in a solid state than in a liquid one. Because water is denser than ice, ice cubes float on the surface of water. Hydrogen bonds link each water molecule to an average of 3.4 other water molecules, and the lattice that forms when water freezes has a lot of empty space inside it.

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  • Q:

    Why does ice float in water?

    A:

    Ice floats in water because it less dense than water thanks to a special kind of chemical bonding known as hydrogen bonding. Typically solids are denser than liquids of the same substance, such as solid lead, but that is not the case with water and ice.

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  • Q:

    What is the difference between ice and snow?

    A:

    Ice forms when water freezes and turns solid. Snow is created when that ice forms crystals and falls from the sky. Though no two snowflakes are alike, nearly all of them have six sides.

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