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4th P. Science Test

Electrolysis The use of electricity to break a molecule down into smaller units.
Polar molecule A molecule that has slight positive or negative do to an imbalance in the way electrons are shared.
Solvent A liquid substance capable of dissolving other substances.
Solute A substance that is dissolved in a solvent.
Solution The combination of compatible solvents and solutes.
Cohesion The phenomenon that occurs when individual molecules are so strongly attracted to each other that they tend to stay together, even when exposed to tension.
Hard water Water that has certain dissolved ions in it predominantly calcium and magnesium ions. Running water over rock deposits.
Hydrogen bonding The process in which hydrogen atoms in H2O form bonds with oxygen atoms.
Why is water liquid at room temp? Hydrogen bonding keeps it together unless at high temps.
Describe the differentiation between water and other liquids. When frozen water lines up in neat rows. This leaves empty air space that allows water to float to the top of large bodies of water and protects the water life.
Surface tension Cohesion
Created by: Raxiqwerty