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Unit 1 topic 3

vocab-Water

TermDefinition
Adhesion Water molecules stick to each other materials
Cohesion Water molecules stick to each other
Polar Molecule In a Molecule, their is a positive charge on the side where the hydrogen atoms are and a negative charge on the other side, where the oxygen atom is a compound with one negativley charged side and one positively charged side.
Hydrogen Bond Opposite electrical charges attaract, water molecules tend to attract each other making water "sticky". The side with the hydrogen atoms ( positive charge ) atttracts the oxygen side ( Negative charge ) of a different water molecule.
Surface Tension Thin "skin" on it's sureface due to the water molecules sticking together. causing the water to clump together in drops rather then spread out in a thin film.
Capillary Action Cohesion and Adhesion work together to allow water to travel against gravity and move up a plant stem.
Specific Heat Capacity The amount of heat required to change the temperture of a unit mass of a given substance by a unit amount ( usaually a degree ).
Expansion Upon Freezing An increase in volume with the same mass leads to a decrease in density.
Universal Solvent Dissolves more substances than any other liquid .
Created by: user-2051179
 

 



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