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Unit 1 Topic 3 Vocab

QuestionAnswer
Adhesion When water molecules stick to other materials.
Cohesion Refers to the occurrence of water sticking to other water molecules via hydrogen bonds.
Polar Molecule A compound with one negatively charged side and one positively charged size.
Hydrogen bond The side with the hydrogen atoms (positive charge) attracts the oxygen side (negative charge)
Surface tension The "thin skin" on the surface of water due to the water molecules sticking together.
Capillary action When cohesion and adhesion work together to allow water to travel against gravity and move up a plant stem.
Specific heat capacity Specific heat is 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 An increase in volume with the same mass leads to a decrease in density.
Universal solvent A liquid that dissolves more substances than any other liquid.
 

 



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