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6 Cards in this Set
- Front
- Back
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Hydrogen Bonds |
The polar nature of water molecules means that the hydrogen end, which is positive, will attract the negitive oxygen end of the molecule. This attraction gives rise to weak bonds called ____. These bonds are only 6% as strong as the covalent bonds of the hydrogen and oxygen in the molecule. |
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Cohesion |
Because of Hydrogen bonding, water tends to stick to itself, resisting external forces. This tendency is called ____. |
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Surface tension |
At air-water interfaces, the stength of cohesion forms a "skin" over the water strong enough to support small objects. This is called ____. The _____ of water is the highest of all common liquids and permits the existance of associations of organisms either suspended below the surface or moving over it. |
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viscosity |
Cohesion is also responsible for the ____ of water. The property that indicates the force nessarary to separate the molecules and allow passing of an object through the liquid. The ____ of water is altered by the temperature and salinity. |
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Heat of vaporization |
In order to evaporate, water must adsorb more heat in comparison with other liquids of simple molecules. This means _______ of water is high. This is a direct result of hydrogen bonding. |
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Latent hear of fusion |
amount of heat gained per mass unit. |
