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Which statement best explains the reason some insects can walk across the surface of a lake?
100°C
increases.
polar ice caps
Cohesion causes the water molecules to be attracted to one another.
Water is a polar molecule, and its cohesiveness causes high surface tension.
Water molecules have a positive charge on one end and a negative charge on the other.
adhesion
A substance with a lower density than water.
If you pour water on to a sheet of wax paper, the water forms drops that are flat on the bottom and round on top. Why does the water arrange itself in this shape?
100°C
increases.
polar ice caps
Cohesion causes the water molecules to be attracted to one another.
Water is a polar molecule, and its cohesiveness causes high surface tension.
Water molecules have a positive charge on one end and a negative charge on the other.
adhesion
A substance with a lower density than water.
Which property of water best explains why the surface of the water is pulled up the sides of a graduated cylinder to create a meniscus(a curve in the water)?
100°C
increases.
polar ice caps
Cohesion causes the water molecules to be attracted to one another.
Water is a polar molecule, and its cohesiveness causes high surface tension.
Water molecules have a positive charge on one end and a negative charge on the other.
adhesion
A substance with a lower density than water.
Which type of substance can float in water?
100°C
increases.
polar ice caps
Cohesion causes the water molecules to be attracted to one another.
Water is a polar molecule, and its cohesiveness causes high surface tension.
Water molecules have a positive charge on one end and a negative charge on the other.
adhesion
A substance with a lower density than water.
A beaker with 100 mL of water is placed on a hot plate and heated. The water boils at 100°C. At what temperature would 90 mL of water boil?
100°C
increases.
polar ice caps
Cohesion causes the water molecules to be attracted to one another.
Water is a polar molecule, and its cohesiveness causes high surface tension.
Water molecules have a positive charge on one end and a negative charge on the other.
adhesion
A substance with a lower density than water.
What do scientists mean when they say that water is a polar molecule?
100°C
increases.
polar ice caps
Cohesion causes the water molecules to be attracted to one another.
Water is a polar molecule, and its cohesiveness causes high surface tension.
Water molecules have a positive charge on one end and a negative charge on the other.
adhesion
A substance with a lower density than water.
When water fills a submarine's floation tanks, the overall density of the submarine
100°C
increases.
polar ice caps
Cohesion causes the water molecules to be attracted to one another.
Water is a polar molecule, and its cohesiveness causes high surface tension.
Water molecules have a positive charge on one end and a negative charge on the other.
adhesion
A substance with a lower density than water.
Where is the majority of Earth’s freshwater located?
100°C
increases.
polar ice caps
Cohesion causes the water molecules to be attracted to one another.
Water is a polar molecule, and its cohesiveness causes high surface tension.
Water molecules have a positive charge on one end and a negative charge on the other.
adhesion
A substance with a lower density than water.
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