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Chapter 7- part II Ionic Compounds and Naming of Ionic compounds

Chapter 7- part II Ionic Compounds and Naming of Ionic compounds Resources: Class powerpoint presentation Textbook sections 7.2 and sections 9.1,9.2,9.5 (naming) Simulations – Atoms and ions http://phet.colorado.edu/en/simulations/category/chemistry/general

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Chapter 7- part II Ionic Compounds and Naming of Ionic compounds

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  1. Chapter 7- part II • Ionic Compounds and Naming of Ionic compounds • Resources: Class powerpoint presentation • Textbook sections 7.2 and sections 9.1,9.2,9.5 (naming) • Simulations – Atoms and ions • http://phet.colorado.edu/en/simulations/category/chemistry/general • Samples of Ionic compound and conductivity sticks • Chapter 7 reading and study guide • Prentice Hall review workbook – parts of Units 2 & 6 • POGIL: Chemical formulas and Names of Ionic Compounds • Practice problems • Regents ref. Tables E, S and the Periodic Table

  2. Ionic Bonds and Ionic Compounds 7.2 • In many coastal countries that have warm, relatively dry climates, salt is produced by the evaporation of seawater. You will learn how cations and anions combine to form stable compounds such as sodium chloride.

  3. 7.2 Formation of Ionic Compounds • Formation of Ionic Compounds • What is the electrical charge of an ionic compound? • Compounds composed of cations and anions are called ionic compounds.

  4. 7.2 Formation of Ionic Compounds • Formation of Ionic Compounds • What is the electrical charge of an ionic compound? • Compounds composed of cations and anions are called ionic compounds. • Although they are composed of ions, ioniccompounds are electrically neutral.

  5. 7.2 Formation of Ionic Compounds • Aluminum metal and the nonmetal bromine react to form an ionic solid, aluminum bromide.

  6. 7.2 Formation of Ionic Compounds • Ionic Bonds • The electrostatic forces that hold ions together in ionic compounds are called ionic bonds.

  7. 7.2 Formation of Ionic Compounds • Formula Units • A chemical formula shows the kinds and numbers of atoms in the smallest representative unit of a substance. • A formula unit is the lowest whole-number ratio of ions in an ionic compound.

  8. 7.2 Formation of Ionic Compounds • NaCl is the chemical formula for sodium chloride.

  9. Conceptual Problem 7.2

  10. Conceptual Problem 7.2

  11. Conceptual Problem 7.2

  12. Conceptual Problem 7.2

  13. for Conceptual Problem 7.2

  14. 7.2 Properties of Ionic Compounds • Properties of Ionic Compounds • What are three properties of ionic compounds?

  15. 7.2 Properties of Ionic Compounds • Most ionic compounds are crystalline solids at room temperature. • Ionic compounds generally have high melting points.

  16. 7.2 Properties of Ionic Compounds • The orderly arrangement of component ions produces the beauty of crystalline solids.

  17. 7.2 Properties of Ionic Compounds • Ionic compounds can conduct an electric current when melted or dissolved in water.

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