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13 Cards in this Set
- Front
- Back
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Reactants
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Atoms or molecules present at the beginning of a chemical reaction.
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Products
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Atoms or molecules formed by a chemical reaction.
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Chemical Reaction
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Occurs when atomic bonds are formed or broken
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First Law of Thermodynamics
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Matter and energy cannot be created or destroyed; they can only change forms.
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Composition Reaction
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Two or more atoms combine to form a molecule.
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Decomposition Reaction
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A molecule breaks apart into two or more atoms.
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Reaction Rate
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The rate or speed at which a chemical reaction takes place.
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Chemical Equation
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Symbolic representation of a chemical reaction.
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Single-Displacement Reaction
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Reaction in which one substance takes the place of another.
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Double-Displacement Reaction
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Reaction in which two substances trade places.
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Endothermic Reaction
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Reaction in which energy is stored.
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Exothermic Reaction
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Reaction in which energy is released.
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Enthalpy
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Energy stored in a molecule's bonds
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