# How many water molecules does it contain? the density of water is 1.0 g/cm3?

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Density is the mass of a substance per unit of volume. Water has a density of 1.0 g/cm3. To find the mass of 1 liter of water, we multiply 1 by 1 by 1 by 1.0 g/cm3. The mass of 1 liter of water is 1 kilogram.
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Water has a very high surface tension because the molecules are attracted to each other. This high surface tension makes water a great solvent. Water also has a high boiling point because of its high surface tension.
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For example, one milliliter of water weighs one gram. The density of water is 1.0 g/cm3. A human hair is around 100,000 micrometers in diameter. One liter of water has a mass of 1,000 grams, meaning that it contains a million (1,000,000) milliliters.
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In chemistry, density is a physical property of a material (a liquid or a solid) that indicates whether the material will sink or float on another material. The density of water is 1.0 g/cm3, which means that one cubic centimetre of water will have a mass of 1 g .
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Water is unique because it always exists as a liquid and doesn’t change its form over a range of temperatures. The density of water is 1.0 g/cm3 at standard temperature and pressure (STP).
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