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Chemistry of Life 2.1-2.3

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Term
Definition
show Smallest unit of an element that still retains the chemical and physical properties of the element.  
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show Protons, Neutrons, and Electrons  
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show The number of protons an atom has.  
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Mass Number   show
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Mole   show
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Isotope   show
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show A combination or joining of two atoms.  
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show A bond resulting from the transfer of electrons from one atom to another, producing ions.  
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Cation   show
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show A negatively charged ion.  
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Covalent Bond   show
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show A weak attraction of hydrogen to negatively charged atoms or molecules. Important for life.  
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Hydrophilic   show
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show Water fearing molecules. (Will not dissolve in water)  
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Acid   show
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show A substance that takes up free hydrogen ions or releases hydroxide ions when added to water.  
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pH   show
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Electrolytes   show
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show The removal of water, resulting in the building of a larger molecule from two smaller molecules.  
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show The breakdown of large molecules into smaller molecules.  
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