Chapter 3 - Water and Hydrogen Bonds

Cohesion

the linking together of like molecules, usually by hydrogen bonds

adhesion

clinging of one substance to another, like water to a plant cell wall

Is water a polar or nonpolar moleule?

polar, opposite charges on either side of the molecule

surface tension

a measure of how difficult it is to stretch or break the surface of a liquid

specific heat

the amount of heat that must be absorbed or lost for 1 gram of the substance to change its temperature by 1 degree

vaporization

the quantity of heat a liquid must absorb for 1 gram of it to be converted to a gas state

solution

mixture of liquid and particles where the particles are dissolved and dispersed evenly

solvent

liquid portion of a solution

solute

particles dissolved in the solution

particles with positive charges will bond with

negative charge of oxygen in water

particles with negative charges will bond with

positive charges of hydrogen in water

hydrophilic molecules

those that will dissolve in water because they have a charge

hydrophobic molecules

those that will not dissolve in water because they have no charge