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MrL Bio 6-3 Vocab
biology 6-3 vocabulary
10
Biology
10th Grade
10/05/2009

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Term
mixture
Definition
combination of two or more substances
Term
solution
Definition
another name for homogeneous mixture, a mixture that is the same throughout
Term
solvent
Definition
substance in which another substance is dissolved
Term
solute
Definition
substance that is dissolved in the solvent in a solution
Term
buffer
Definition
mixtures that can react with acids or bases to keep the pH within a particular range
Term
pH
Definition
the measure of the concentration of H+ ions in a solution
Term
base
Definition
substances that release hydroxide ions (OH-) when dissolved in water
Term
acid
Definition
substances that release hydrogen ions (H+) when dissolved in water
Term
hydrogen bond
Definition
weak bond that forms between hydrogen atoms, or between hydrogen atoms and other atoms
Term
polar molecule
Definition
molecules that have an unequal distribution of charges / one region has a positive charge and another region has a negative charge
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