water Flashcards
Unequal sharing of electrons between different types of atoms that are covalently bonded together (e.g., water).
Polarity
allows water molecules to interact with one another and with other polar (hydrophilic) molecules
Polarity
non-polar molecules are
hydrophobic
water molecules stick to one another (hydrogen bonds)
Surface Tension
lots of heat is needed to break H bonds and keep them from reforming
High Boiling Point
when water evaporates, it absorbs energy
Evaporative Coolant
water efficiently moves heat
Thermal Conductivity
Water Acts as a ________ and lots of compounds can be dissolved in it
Solvent
solvent =
water
solute =
Kool-aid, sugar, salt, etc
The more ______, the more concentrated the solution.
solute
comparison of the solute concentration of two solutions
Tonicity
more concentrated (more solute)
hypertonic
less concentrated (less solute)
hypotonic
solute concentrations are the same in both solutions
isotonic
the movement of molecules from an area of higher concentration to an area of lesser concentration until equilibrium is reached
Diffusion
the diffusion of water through a selectively permeable membrane
Osmosis
Cells placed in a __________ will swell, possibly until they burst (hemolysis).
hypotonic solution
Cells placed in a ___________ will shrink (crenation).
hypertonic solution
Cells placed in an ________ will neither shrink nor swell.
isotonic solution
durring high boiling point lots of heat is needed to break _____ and keep them from reforming
H bonds
polarity uses unequal sharing of______ between different types of atoms that are covalently bonded together (e.g., water).
electrons
when water evaporates, it ________
absorbs energy
polarity uses Unequal sharing of electrons between different types of atoms that are______ together (e.g., water).
covalently bonded
