1. Covalent Nomenclature

2. Molecular (Covalent) Nomenclature for two nonmetals
Prefix System (binary compounds)
1. Less electronegative atom comes first.
Add prefixes to indicate # of atoms
Change the ending of the second element to -ide.

3. Molecular Nomenclature Prefixes
PREFIX mono- di- tri- tetra- penta- hexa- hepta- octa- nona- deca-
NUMBER

4. Molecular Nomenclature: Examples
CCl4
N2O
SF6
carbon tetrachloride
dinitrogen monoxide
sulfur hexafluoride

5. More Molecular Examples
arsenic trichloride
dinitrogen pentoxide
tetraphosphorus decoxide
AsCl3
N2O5
P4O10

6. Name this compound,CCl4 Monocarbon Tetrachloride Carbon Tetrachloride
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Name this compound,CCl4
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Monocarbon Tetrachloride
Carbon Tetrachloride
Carbon Chloride
Carbon (IV) Chloride

7. Name this compound, PBr4 Potassium Bromide Phophorus Bromide
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Name this compound, PBr4
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Potassium Bromide
Phophorus Bromide
Potassium Tetrabromide
Phosphorus Tetrabromide

8. What is the chemical formula for Sulfur Trioxide
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What is the chemical formula for Sulfur Trioxide
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S3O
SO3