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Leah Choate's chemistry terms

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Term
Definition
Element   A pure substance made of only one kind of atom  
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Atom   Basic unit of matter  
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Titration   A measured amount of a solution of unknown concentration is added to a known volume of a second solution until the reaction between them is just complete  
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Compound   a substance formed by chemical union of two or more elements or ingredients in definite proportion by weight  
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pH scale   measurement system used to indicate the concentration of hydrogen ions (H+) in solution; ranges from 0 to 14  
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Chemical reaction   A process during which chemical bonds between atoms are broken and new ones are formed. Producing one or more different substances.  
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Stoichiometry   the relation between the quantities of substances that take part in a reaction or form a compound (typically a ratio of whole integers)  
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Acid   A substance that increases the hydrogen ion concentration of a solution.  
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Base   A substance that decreases the hydrogen ion concentration of a solution.  
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Reactant   A chemical substance that is present at the start of a chemical reaction  
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Created by: Leah_Choate
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