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100
Water molecules are made up of?
What are two hydrogen atoms and one oxygen atom?
100
Water's heat of fusion.
What is 80 calories per gram?
100
The thing that determines the rate at which water evaporates.
What is air pressure?
100
The percentage of a person's weight that is water.
What is 50 to 60%?
100
This can happen to food when it has been in dry ice preservation for too long.
What is sublimation?
200
Which atom exerts a stronger pull on the shared electrons in a water molecule?
What is oxygen?
200
The temperature at which vapor pressure equals the air pressure above a liquid.
What is a boiling point?
200
Surface tension is a result of this.
What is hydrogen bonds, which experience force in all directions?
200
Water that contains calcium or magnesium ions.
What is hard water?
200
Fruits, vegetables, and meat have how much water content?
What is 70 to 90%?
300
The charges associated with the atoms of a water molecule.
What is oxygen is negative, and hydrogen is positive?
300
The change from solid ice directly to gas.
What is sublimation?
300
Energy required to cause a phrase change without a change in temperature.
What is latent heat?
300
The very thin layer of water on mineral sources.
What is bound water?
300
An inward for that tends to minimize the surface area of a liquid.
What is surface tension?
400
A water molecule is a *blank* molecule.
What is a polar molecule?
400
A mixture in which water is a dispersing medium.
What is a colloidal dispersion?
400
Water's boiling point is high due to this.
What is hydrogen bonds?
400
The energy needed to change 1.0g of a substance from liquid to solid.
What is heat of fusion?
400
What happens to water when it is frozen.
What is molecules become more orderly; density increases?
500
The medium for nearly every chemical reaction that sustains life.
What is water?
500
A mixture of two liquids containing droplets that don't normally blend with each other.
What is an emulsion?
500
Water at standard atmosphere boils at this temperature.
What is 100°C?
500
How water helps the body maintain a constant body temperature.
What is water removes energy from the body as it evaporates?
500
Water is a *blank* solvent.
What is universal solvent?
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