Rules
Names of Compounds 1
Names of Compounds 2
Compound Formulas
Element Roots
100
The prefix that you always drop for the first element
What is mono?
100
HCl
What is hydrogen chloride?
100
ICl3
What is iodine trichloride?
100
Dinitrogen trioxide
What is N2O3?
100
The element root of H
What is "hydr"?
200

In binary molecular compounds, the name always ends in these three letters.

What is ide?

200
N2S
What is dinitrogen monosulfide?
200
PH3
What is phosphorous trihydride?
200
Diphosphorus pentoxide
What is P2O5
200
The element root of P
What is "phosph"?
300
You will drop this in the prefix if it is followed by a vowel (ignoring the prefix "mono")
What is "a"?
300
CO2
What is carbon dioxide?
300
PBr5
What is phosphorus pentabromide?
300
Carbon tetrabromide
What is CBr4
300
The element root of B
What is "bor"?
400
You drop the second of this in "mono" if it is followed by a vowel
What is "o"?
400
CO
What is carbon monoxide?
400
SF6
What is sulfur hexaflouride?
400
Iodine trichloride
What is ICl3
400
The element root of Se
What is "selen"?
500
Binary Molecular Compounds only include this kind of element
What is nonmetal?
500
N2O4
What is dinitrogen tetroxide?
500
SiO2
What is silicon dioxide?
500
Diarsenic Pentoxide
What is As2O5
500
The element root of Te
What is "tellur"?
M
e
n
u