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Chapter 3 Vocab

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Term
Definition
Acid   Any compound that increases the number of hydronium ions when dissolved in water.  
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Indicator   A compound that can reversibly change color depending on conditions such as pH.  
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Base   Any compound that increases the number of hydroxide ions when dissolved in water.  
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Neutralization reaction   The reaction of an acid and a base to form a neutral solution of water and a salt.  
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pH   A value that is used to express the acidity or basicity (alkalinity) of a system.  
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Salt   An ionic compound that forms when a metal atom replaces the hydrogen of an acid.  
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Organic compound   A covalently bonded compound that contains carbon.  
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Hydrocarbon   An organic compound composed only of carbon and hydrogen.  
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Carbohydrate   A class of energy-giving nutrients that includes sugars, starches, and fiber; composed of one or more simple sugars bonded together.  
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Lipid   A type of biochemical that does not dissolve in water; fats and steriods are lipids.  
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Protein   A molecule that is made up of animo acids and that is needed to build and repair body structures and to regulate processes in the body.  
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Nucleic acid   A molecule made up of subunits called nucleotides.  
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