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Unit 1 Topic 3

TermDefinition
Adhesion Molecules stick to other materials
Cohesion The occurrence of molecules sticking to other molecules via hydrogen bonds
Polar molecule A compound with one negatively charged side and one positively charged side
Hydrogen bond A molecule with a positive charge attracts a molecule with a negative charge
Surface tension A thin "skin" on the surface of a molecule due to molecules sticking together
Capillary action When cohesion and adhesion work together to allow water to travel against gravity
Specific heat capacity How much heat a substance can absorb before it starts to get hot
Expansion upon freezing When a substance gets slightly larger when freezing because the molecules move farther apart
Universal solvent Water is the universal solvent because it dissolves more substances that any other liquid
Created by: user-2051323
 

 



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