1. BELLWORK 12/8/16
On your worksheet, complete the Covalent Compounds Wksht (Page 2)

2. Naming Covalent Compounds and Writing Formulas

3. 1-- mono 2-- di 6-- hexa 7-- hepta 3-- tri 8-- octa 4-- tetra 9-- nona
Prefixes are used to represent the number of atoms in a covalent compound.
1-- mono
2-- di
3-- tri
4-- tetra
5-- penta
6-- hexa
7-- hepta
8-- octa
9-- nona
10-- deca

4. 2 Steps to Naming and Writing Molecular Compounds with Covalent Bonds
Name the first non-metal.
The first non-metal only gets a prefix if there is more than one atom.
Name the second non-metal using the correct prefix and an “ide” ending
*The second non-metal always receives a prefix.
**When two vowels are placed next to each other, the last
vowel of the prefix is dropped. Ex: monooxide would be written as monoxide.
**The “i” in the prefixes “di” and “tri” are never dropped

5. EXAMPLES
CO2 – carbon dioxide
N2O5 – Dinitrogen pentoxide

6. You try . . .
Cl2O
Dichlorine monoxide

7. Carbon Monoxide CO
Phosphorus
Trichloride
PCl3
CI4
Carbon Tetriodide

8. Writing The Molecular Formulas:
Phosphorous
Trichloride
PCl3

9. Trinitrogen N3
Carbon
Tetrachloride
CCl4

10. Classwork / Homework Covalent Bond Formulas and Names Worksheet.
Answer Key is on my website.