Molecules, Ions, and their Compounds

Molecules, Ions, and their Compounds PowerPoint PPT Presentation


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Chapter goals. Interpret, predict, and write formulas for ionic and molecular compounds.Name compounds.Understand some properties of ionic compounds.Calculate and use molar mass.Calculate percent composition for a compound and derive formulas from experimental data.. Molecule. an assembly of 2 o

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Molecules, Ions, and their Compounds

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1. Chapter 3 Molecules, Ions, and their Compounds

2. Chapter goals Interpret, predict, and write formulas for ionic and molecular compounds. Name compounds. Understand some properties of ionic compounds. Calculate and use molar mass. Calculate percent composition for a compound and derive formulas from experimental data.

3. Molecule an assembly of 2 or more atoms (mostly of non-metals) bound together in a particular ratio and a particular manner is the smallest identifiable unit into which a pure substance can be divided and still retain the composition and chemical properties of the substance

4. Elements that exist as molecules Atoms of most of the nonmetals form discrete molecules, except for the noble gases. Some elements can exist in more than one form of molecule; the different forms are called allotropes. Examples are: Diamond, graphite, and buckyballs for carbon. O2 and O3 (ozone) for oxygen.

5. ELEMENTS THAT EXIST AS MOLECULES

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