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19 Cards in this Set
- Front
- Back
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Substances that you start with in a chemical reaction; Located on the left side of the arrow. |
Reactants |
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Substances that are formed in a chemical reaction; Located on the right side of the arrow. |
Products |
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Symbols and formulas used to show what takes place in a chemical change; Shorthand method to show a chemical change. |
Chemical Equation |
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Substance which speeds up a chemical change without being permanently changed in the process. |
Catalyst |
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Biological Catalyst |
Enzyme |
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Substances that slows or stops a chemical reaction. |
Inhibitor |
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Numbers used to balance chemical equations; Numbers that are placed in front of formulas for elements and symbols for compounds. |
Coefficients |
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Numbers used in formulas to show the number of atoms present in a compound; These never change when balancing a chemical equation. |
Subscripts |
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Change that produces new substances. |
Chemical Change |
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The mass of the reactants equals the mass of the products; This law supports balancing chemical equations. |
Law of Conservation of Mass |
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Reaction where two or more substances produce a single substance. |
Composition Reaction |
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Reaction where a single compound is broken down into two or more substances. |
Decomposition Reaction |
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Reaction where the elements in two compounds switch places producing two new compounds. |
Double-Replacement Reaction |
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Reaction where a substance reacts with Oxygen; Burning |
Combustion Reaction |
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Reaction where a free element replaces an element in a compound producing a new free element and a new compound. |
Single-Replacement Reaction |
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Two atoms of the same element combined covalently. |
Diatomic Molecule |
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Insoluble solid formed from between two solutions. |
Precipitate |
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Reaction which gives off energy. |
Exothermic Reaction |
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Reaction which absorbs energy. |
Endothermic Reaction |
