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Questions and Answers
What is the definition of Cohesion?
What is the definition of Cohesion?
- The sticking together of alike molecules. (correct)
- The tendency of dissimilar particles sticking together.
- The movement of liquid along a surface of a solid.
- The sticking together of unlike molecules.
What is the definition of Adhesion?
What is the definition of Adhesion?
- The tension of the surface film of a liquid.
- The sticking together of alike molecules.
- The movement of liquid along a surface of a solid.
- The tendency of dissimilar particles sticking together. (correct)
What does Capillary Action refer to?
What does Capillary Action refer to?
- The tendency of dissimilar particles sticking together.
- The movement of liquid along a surface of a solid caused by the attraction of molecules of the liquid to the molecules of the solid. (correct)
- The tension of the surface film of a liquid.
- The sticking together of alike molecules.
What is Surface Tension?
What is Surface Tension?
When two water molecules stick together, this is called...
When two water molecules stick together, this is called...
A hydrogen bond by itself is ________, but when many hydrogen bonds are together, they become __________.
A hydrogen bond by itself is ________, but when many hydrogen bonds are together, they become __________.
Water moves ________ because of capillary action.
Water moves ________ because of capillary action.
Surface tension acts like a thin ________.
Surface tension acts like a thin ________.
The attraction of water molecules to other molecules is called...
The attraction of water molecules to other molecules is called...
Some insects use what to stand on top of water?
Some insects use what to stand on top of water?
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Study Notes
Key Concepts in Water Properties
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Cohesion: Refers to the attraction between like molecules, exemplified by water molecules sticking together.
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Adhesion: Describes the attraction between different types of molecules, such as water adhering to surfaces like glass or soil.
Capillary Action
- Capillary Action: The ability of liquid to flow in narrow spaces without the assistance of external forces, crucial for the movement of water in plants, resulting from the interaction between water molecules and solid surfaces.
Surface Tension
- Surface Tension: A phenomenon caused by cohesive forces between liquid particles at the surface, leading to a minimized surface area and acting as a barrier that can support small objects.
Intermolecular Relationships
- Hydrogen Bonds: Individual hydrogen bonds are weak; however, when numerous bonds form together, they collectively exhibit stronger properties, contributing to water's unique behaviors.
Effects of Capillary Action
- Water moves upward through capillary action in plants, enabling essential processes like nutrient transport from roots to leaves.
Practical Applications
- Surface Tension: Can act like an elastic sheet, enabling some insects to walk on water without sinking, showcasing the impact of surface tension in nature.
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