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11 terms

2-2 Properties Of Water

Chapter 2 The Chemistry Of Life, 2-2 Properties Of Water
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Cohesion
Attraction between molecules of the same substance
Adhesion
Attraction between molecules of different substances; in plants, attraction between unlike molecules
Mixture
Material composed of two or more elements or compounds that are physically mixed together but not chemically combined
Solution
Mixture of two or more substances in which the molecules of the substances are evenly distributed
Solute
Substance that is dissolved in a solvent to make a solution
Solvent
Substance in which a solute is dissolved to form a solution
Suspension
Mixture of water and nondissolved materials
pH Scale
Measurement system used to indicate the concentration of hydrogen ions (H+) in solution; ranges from 0 to 14
Acid
Compound that forms hydrogen ions (H+) in solution
Base
Compound that produces hydroxide ions (OH+) in solution
Buffer
Weak acid or base that can react with strong acids or bases to help prevent sharp, sudden changes in pH