Molecular Compounds.  Held together by covalent bonds  Elements involved are nonmetals  Binary Compound: two nonmetals  Example: H 2 O Molecular Compounds.

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Presentation transcript:

Molecular Compounds

 Held together by covalent bonds  Elements involved are nonmetals  Binary Compound: two nonmetals  Example: H 2 O Molecular Compounds

 Nonmetals can combine in different ways  Use prefixes to distinguish between the combinations Example: CO and CO2  Prefixes indicate how many atoms of an element are present in each molecule of the compound  CO2 = Carbon dioxide Naming Binary Compounds

 1. Write the names in the order of the formula  2. Use prefixed to indicate the number of each kind of atom  If the first element has just one atom, do not use a prefix  3. End the name of the second element with “ide” Steps to Naming Binary Molecules

 ClO 3 -  Polyatomic ion What type of Compound is this?

 NaCl  Binary Ionic What type of Compound is this?

 C 6 H 12 O 6  Molecular What type of Compound is this?

 NaClO 3  Ternary Ionic Compound What type of Compound is this?