1. CaCl2 = calcium chloride
Naming Compounds
Binary Ionic Compounds – consist of only 2 different elements, a metal and nonmetal
1. cation (metal) first, then anion (nonmetal)
2. metal = name of the element
Ca2+ = calcium ion
3. nonmetal = root + -ide
Cl = chloride
CaCl2 = calcium chloride

4. Naming when you know the metal’s charge:  metal is group 1, group 2, or Al3+, Zn2+, Ag  no Roman numerals (plain style) K2O = potassium oxide NOT potassium (I) oxide

5. PbCl2 = lead (II) chloride
Naming when you don’t know the metals charge from periodic table: Roman Numeral Style
 metal can have different charges, it depends on the compound
 use Roman numeral in name
PbCl2
Pb2+ is cation
PbCl2 = lead (II) chloride

6. Figure 2.22: The common cations and anions

9. P2O5 = diphosphorus pentoxide
Naming for covalent compounds:
 Compounds between two nonmetals
 Use prefixes: 1 = mono
2 = di
3 = tri
4 = tetra
5 = penta
6 = hexa
 Never use mono- with the first element
P2O5 = diphosphorus pentoxide
CO = carbon monoxide

17. Chromium (III) sulfide
Rubidium oxide
Aluminum fluoride
Titanium (IV) oxide
Carbon tetrachloride
Nickel (I) sulfide

20. p. 100

21. Give the name of each of the following compounds. Na2SO4 b. K3PO4
Naming Compounds That Contain Polyatomic Ions
Give the name of each of the following compounds.
Na2SO4
b. K3PO4
c. Fe(NO3)3
d. Mn(OH)2
e. Na2S

24. Ammonium sulfide
Copper (II) sulfate
Zinc nitrate
Chromium (III) carbonate
Magnesium phosphate
Titanium sulfite

25. Name the following:
H2S
Na3PO4
CH3CO2H
KCN
H2SO4
CaCO3

26. Calcium acetate
Iron (III) nitrite
Chloric acid
Methane
Sodium hypochlorite

27. A flowchart for naming acids
A flowchart for naming acids. An acid is best considered as one or more H+ ions attached to an anion.

28. Name the following:
HNO2
NaClO2
KMnO4
NaCN
(NH4)3PO4
H2CO3