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Unit 1 Topic 3

TermDefinition
Adhesion Water molecules stick to other materials.
Cohesion Water molecules stick to each other.
Polar molecule A compound with one negatively charged side and one positively charged side.
Hydrogen bond The side with the hydrogen atoms (positive charges) attracts the oxygen side (negative charge) of a different water molecule.
Surface tension Water has a thin "skin" on its surface due to the water molecules sticking together.
Capillary action
Specific heat capacity The amount of heat required to change the temperature of a unit mass of a given substance by a unit amount (usually a degree).
Expansion upon freezing As water decreases in temperature, the molecules move away from each other. This change causes an increase in volume.
Universal solvent It dissolves more substances than any other liquid.
Created by: user-2051140
 

 



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