Writing name and formulas for Covalent and Ionic compounds

Ionic Compounds

For Ionic compounds with metals that have more then one possible charge; Roman Numerals need to be put after the metal.  For example: Lead (IV) Oxalate

Roman Numerals

1 = I

2 = II

3 = III

4 = IV

5 = V

6 = VI

7 = VII

8 = VIII

9 = IX

10 = X

Covalent Compounds



Pracitce Questions

 Name the following:

KHCO3

SiS2

ZnF2

SF3

P2O5

Write the formula for the following:

Tetracarbon decahydride

Chlorine gas

Calcium Sulphide

Aluminum nitrate

Sodium Iodide

Answers:

Potassium bicarbonate

Silicon desulphide

Zinc Fluoride

Sulfur trifluroide

Diphosphorous pentoxide

C4H10

Cl2

CaS

Al(NO3)3

NaI