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17 Cards in this Set
- Front
- Back
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Chemical Reaction
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is a process in which atoms of one or more substances rearrange to form one or more new substances
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Chemical Equation
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is a description of a reaction using element symbols and chemical formulas
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Reactant
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starting substances in a chemical reaction
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Products
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substances produced by the chemical reaction
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Law of Conservation of Mass
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states that the total mass of the reactants before the chemical reaction is the same as the total mass of the products after the chemical reaction
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Coefficient
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is the number placed in front of an element symbol of a chemical formula in an equation
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Synthesis
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is a type of chemical reaction in which two or more substances combine and form one compound
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Decomposition
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one compound breaks down and forms two or more substances
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Single Replacement
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one element replaces another element in a compound
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Double Replacement
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two negative ions switch places and form two new compounds
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Combustion
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is a chemical reaction in which a substance combines with oxygen and releases energy
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Endothermic
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chemical reactions that absorb thermal energy
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Exothermic
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is a chemical reaction that releases energy
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Activation Energy
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is the minimum amount of energy needed to start a chemical reaction
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Catalyst
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is a substance that increases reaction rate by lowering the activation energy of a reaction
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Enzyme
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is a catalyst that speeds up chemical reactions in living cells
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Inhibitor
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is a substance that slows or even stops a chemical reaction
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