Naming Binary Molecular Compounds

Did you ever wonder… …what the chemicals in some of your household supplies are? This contains Boron trifluoride What is that?

What is a binary molecular compound? What is a molecular compound? Molecular Compound – Compound with COVALENT bonds

What is a binary molecular compound? What does “binary” mean? What are other words that start with “bi-”? Binary – having 2 elements

What patterns do you see in the formulas and names? Chemical FormulaName of Molecule COcarbon monoxide N 4 Cl 6 tetranitrogen hexachloride NF 3 nitrogen trifluoride C2H6C2H6 dicarbon hexahydride P2O3P2O3 diphosphorus trioxide

Naming Covalent Compounds Rules 1)The first element keeps its name. 2)The second element ends in “ide.” (like ionic names) 3)The prefix of each element shows how many of each element are in the compound. 4)*If there is only one of the first element, “mono-” is NOT used.

Prefixes Table PrefixNumber of atom mono1 di2 tri3 tetra4 penta5 hexa6 hepta7 octa8 nona9 deca10

Examples Example 1) P 2 S 3 Example 2) H 2 O Example 3) CO 2 diphosphorus trisulfide dihydrogen monoxide carbon dioxide

Group Practice Get into groups of 2-3. For the binary molecular compounds on the next slide, write out either the name or the chemical formula on a Post-It and stick it to the board when finished.

Group Practice Chemical Formula Name N2O4N2O4 S 2 F 10 Trinitrogen tetrafluoride Iodine hexoxide

Independent Practice Fill out the Naming Molecules with Covalent Bonds worksheet.