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27 Cards in this Set
- Front
- Back
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Acid
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Compound that forms hydrogen ions in solution
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Activation energy
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The initial energy needed to start a chemical reaction.
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Adhesion
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Attraction between molecules of different substances.
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Atom
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Basic unit of matter
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Base
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Substance with a Ph more than 7
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Buffer
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Weak acid or base that can react with strong acids or bases to prevent sharp, sudden changes in Ph.
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Catalyst
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Substance that speeds up the rate of a chemical reaction.
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Chemical Reaction
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Process that changes one set of chemicals into another set.
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Cohesion
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Attraction between molecules of the same substance.
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Compound
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Substance formed by the chemical combination of two or more elements.
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Covalent Bond
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Bond formed by the sharing of electrons.
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Electron
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Negatively charged particle
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Element
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Substance consisting entirely of one type of atom.
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Enzyme
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Biological catalyst that speeds up chemical reactions.
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ion
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atom that has a positive or negative charge.
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ionic bond
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Bond formed by transferring an electron
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molecule
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Smallest unit of most compounds
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nucleus
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The center of the atom containing the protons and neutrons. In cells, structure that contains the cell's genetic material and controls the cell's activities.
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pH scale
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scale used to measure acidity
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polarity
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uneven distribution of electrons
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product
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Element or compound produced by a chemical reaction.
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reactant
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element or compound that enters a chemical reaction.
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solute
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substance that is dissolved into a solvent to make a solution
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solution
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mixture of two or more substances.
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solvent
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substance in which a solute is dissolved to form a solution.
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substrate
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reactant of an enzyme-catalyzed reaction
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suspension
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mixture of water and non-dissolved materials.
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