Biochemistry Set 2

191918606	ionic bond	bond resulting from a transfer of electrons (electrons being ripped off)
191918607	covalent bond	bond resulting from the sharing of electrons
191918608	nonpolar	electrons shared equally
191918609	polar covalent bond	bond resulting from electrons shared unequally
191918610	buffer	substance that resists changes in pH
191918611	bicarbonate ion	most important buffer in human blood
191918612	isomer	organic compounds with the same molecular formula but different structure
191918613	alkaline	synonym for basic
191918614	salt	compound that releases ion other than H+ or OH- when dissolved in water
191918615	chemical equilibrium	when the reaction rate is about the same in either direction
191918616	adhesion	attraction between different kinds of molecules
191918617	surface tension	measure of how difficult it is to stretch or break the surface of a liquid
191918618	van der Waals interactions	weak attractions between molecules or parts of molecules that result from localized charge fluctuations
191918619	evaporative cooling	property of a liquid where the surface becomes cooler during evaporation due to the loss of molecules
191918620	hydration shell	sphere of water molecules around each dissolved ion
191918621	hydrophobic interaction	weak chemical bond formed when molecules that do not mix with water change to exclude the water
191918622	hydrocarbon	organic molecule consisting of only hydrogen and carbon
191918623	isotope	atoms with same number of protons but different number of neutrons
191918624	hydrogen bond	weak bond between hydrogen and a highly electronegative atom like nitrogen or oxygen
191918625	acid	more H+ than OH- ions, pH below 7
191918626	base	more OH- than H+ ions, pH above 7
191918627	pH	measure of H+ ions in a solution