1. Warm Up What type of ion does Calcium form? Anion or Cation
Does it gain or loose electrons and how many?
Write the formula for the ion that calcium forms:

2. Write the individual ions and then the chemical formula for Calcium iodide:
Write the individual ions and then the chemical formula for Calcium phosphide:

3. 6.5

4. Molecular Compounds Composed of two non-metals that share electrons
Prefixes help to distinguish the amount of each element present in a compound
Naming covalently bonded elements requires you to indicate the amount of each element present!!!
(There are no ions to indicate how many of each element there is!!!)

5. Prefixes to memorize: mono- 1 hexa- 6 di- 2 hepta- 7 tri- 3 octa- 8 tetra- 4 nona- 9 penta- 5 deca- 10

6. Naming (Nomenclature) Rules
1st- Check to see if the compound is ionic or covalent (metal + nometal) (two non-metals) 2nd - If 2 nonmetals then use the following set up.

7. Naming (Nomenclature) Rules
Example:
N2O : Dinitrogen monoxide
2 nitrogens oxygen
Numeric Prefix + name 1st element numeric prefix + name 2nd element+ide
** No prefix is given to the first element only if there is only 1 of that element present in the compound!!!**
CO : Carbon monoxide

8. Now it’s your turn!!! Name the following: CCl4 P2O5 N2O3
Write the chemical formula for the following:
Carbon dioxide
Dichlorine heptoxide

9. Is it Ionic or Covalent??? Ionic Covalent Metal + nonmetal
Names have no numeric prefixes
2 nonmetals
Names will have numeric prefixes

10. Ionic or covalent??? Sodium Chloride Carbon tetrachloride Na2O NO

11. Reminder: When naming a chemical using the formula given
Identify if it is ionic or covalent
Use the naming rules
Writing formulas
1. Identify if it is ionic or covalent based on the name
2. Ionic compounds will require you to figure out charges and cross multiply.
Covalent molecules give you the amounts in the name

12. Name the following chemicals
N2F2
AlCl3
ClO4
K2S
S2F10
Dinitrogen difluoride
Aluminum chloride
Chlorine tetraoxide
Potassium sulfide
Disulfur decaflouride

13. Write the formula for the following chemicals
Lithium sulfide
Diphosphorus trioxide
Li2S
P2O3

14. 6.6 Naming Common Acids Acids produce H+ ions when dissolved in water
Binary Acids: H+ ions paired with an Anion (-)
Naming: HCl
1) Prefix hydro-
2) anion – suffix – ic chlorine  chloric
3) Add term acid
Example: HCl hydrochloric acid

15. Your Turn!!
Name: H2S HBr Write the formula: Hydrofluoric acid Hydrophosphoric acid

16. Oxyacids H+ ion and an oxyanion
Oxyanions: a polyatomic ion that contains oxygen
Naming:
Use the polyatomic ion name only!
Change suffix of the polyatomic ion according to the following rules:
ate ending turns to – ic NO3- HNO3 nitric acid
ite ending turns to – ous NO2- HNO2 nitrous acid
** see list on page 160** Be familiar with those acids

17. Time to Practice !!!