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Chemical Reactions

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Term
Definition
Physical Change   Any change that alters the form or appearance but does not change into another substance  
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Chemical Change   The atom rearrange to form new substances  
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Reacrants   Substances that undergo the chemical changes  
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Products   New substances that are formed  
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Precipitate   A solid that forms liquids during a chemical change  
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Exothermic Reaction   Energy released as the products form is greater then the energy required  
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Endothermic Reaction   More energy is required to break the bonds of the reactants then is released  
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