17 terms

Chemistry 15-1

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polar
Each O-H bond in a water molecule is highly ___.
negative;positive
Oxygen acquires a slightly ___ charge, while hydrogen acquires a slightly ___ charge.
polar
Since the H-O-H bond angle is 105 degrees, the water molecule as a whole is ___.
hydrogen
Water molecules are attracted to each other as a result of intermolecular ___ bonds.
low;high
This bonding accounts for many properties of water, such as its ___ vapor pressure and ___ boiling point. (hydrogen bonding)
surface
Hydrogen bonding is also responsible for the high ___ tension of water.
Spherical
Liquids tend to minimize their surface area and form ___ droplets because of their surface tension.
surfactant
The surface tension of water can be reduced by adding a ___.
specific heat;temperatures
Water has a high ___ ___ capacity, which helps to moderate the air ___ around large bodies of water.
surface tension
Inward force that tends to minimize the surface area of a liquid
surfactant
A wetting agent
Hydrogen bonds
Intermolecular attraction between a hydrogen atom and a highly electronegative atom such as oxygen, on an adjacent molecule
hydrogen bonds - evap
Water absorbs a large amount of heat as it evaporates because of ___ ___.
hydrogen bonds - boil
Water high boiling point is due to ___ ___.
Ice;dense
___ floats in liquid water. This is because it is less ___ than water.
hydrogen bonding - ice
Ice has a rigid open structure, which is also due to ___ ___.
solvent
Water is a polar liquid and an excellent ___ for many substances.