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.
