synthesis
: When you make a big molecule from two or more smaller ones.
•
system
: Everything you're talking about at the moment.
•
temperature
: A measurement of the average kinetic
energy of the particles in
a system.
•
theoretical yield
: The amount of product which should be made in a
chemical reaction if everything goes perfectly.
•
thermodynamics
:
The study of energy
•
Third law o' thermodynamics
: The randomness of a system at 0 K is zero.
•
titration
: When the concentration of an acid
or base is determined by
neutralizing it.
•
transition state
: See "activated complex"
•
triple point
: The temperature and pressure at which all three states of a
substance can exist in equilibrium.
•
unit cell
: The simplest part of a crystal that can be
repeated over and over to
make the whole thing.
•
unsaturated
: When you haven't yet dissolved all of the solute that's possible
to dissolve in a liquid.
•
unshared electron pair
: two electrons that aren't involved in chemical
bonding. Also frequently referred to as a "lone pair".
•
valence electron
: The outermost electrons in an atom.
•
vapor pressure
: The pressure of a substance that's present above it's liquid.
For example, you can tell that ammonia has a
high vapor pressure because
the smell of it is very strong above liquid ammonia.
•
vaporization
: When you boil a liquid.
•
volatile
: A substance with a high vapor pressure.
•
VSEPR
: A theory for predicting molecular shapes that assumes that electrons
like to be as far from each other as possible.
