Biology 2-2
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mixture
a material made up of 2 or more elements or compounds, physically mixed not chemically combined
water
greatest solvent on earth
capillary action
adhesion between glass and water to rise in a narrow tube against the force of gravity
adhesion
an attraction between molecules of different substances
cohesion
an attraction between molecules of the same substance
hydrogen bond
between hydrogen and an electron loving atom
polar molecule
unequal sharing of electrons
buffers
weak acids or bases that can react with strong acids or bases to prevent sharp sudden changes in pH
