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Unit 1 Topic 3

Topic-Water

TermDefinition
Polar molecule A compound with one negatively charged side and one positively charged side.
Hydrogen bond The attraction between the positive hydrogen side of onr water molecule and the negative oxygen side of another.
Cohesion Water molecules sticking to other water molecules.
Adhesion Water molecules sticking to other materials.
Surface tension The thin 'skin' formed on waters surface because water molecules stick together.
Capillary action Cohesion and adhesion working together to pull water upward against gravity.
Specific heat capacity The amount of heat needed to raise the temperature of a substance by one degree.
Expansion upon freezing The increase in volume and decrease in density that occurs as water cools and its molecules move apart.
Universal solvent A title for water because it dissolves more substances than any other liquid.
Created by: user-2051545
 

 



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