CHAPTER 20&21
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| chemical change | what happens hwen two substances react to produce entirely different substances
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| physical change | ice melting is an example of this kind of change
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| physical property | the state, size, or shape of a substance
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| actual yield | the amount of product that you can measure after a chemical reaction
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| limiting reactant | the reactant that is in short supply for a chemical reaction
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| percent yield | the ratio of actual yield to predicted yield times 100
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| ratio | the numerical relationship between two objects or substances
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| predicted yield | the amount of product that should be produced in a chemical reaction
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| balanced equation | an equation with an equal number of atoms in the reactants and products
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| coefficient | the 6 in 6H2O
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| subscript | the 3 in CaCO-little3-
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| combustion reaction | a reaction that is used to abtain energy from fuel
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| decomposition reaction | AB -> A plus B
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| double-displacement reaction | AB plus CD -> AD plus CB
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| polymer | a large molecule with repeating units of smaller molecules
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| polymerization | the process of attaching small molecule units together to make a large molecule
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| precipitate | the insoluble product of a double- displacement reaction
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| single- displacement reaction | AX plus B -> BX plus A
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| endothermic reaction | a reaction that uses more energy than it produces
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| addition reaction | A plus B -> AB
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| exothermic reaction | a reaction that produces more energy than it uses
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Or sort by any of the columns using the down arrow next to any column heading.
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