Chemical Formulas
Electrons in the atom's outer most energy level
valence electron
Solid that settles out of a mixture
precipitate
It changes color in acids and bases
indicator
Coating of one metal on another metal
plating
line at 90 degrees to a barrier
normal
formula mass
Decomposition using an electric current
electrolysis
Formation of ions
ionization
heating an ore in air
roasting
high point of a wave
crest
Molecule made up of only two atoms
diatomic
Substance changed in a chemical reaction
reactant
mixing acids and bases produces water and
salt
electroplating
distrubances in a medium
wave