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Compounds and Their Bonds

Compounds and Their Bonds. Ionic Compounds Naming Ionic Formulas. How well do you know your cations and anions?. Test Your skills!. Naming Binary Ionic Compounds. Contain 2 different elements Name the metal first, then the nonmetal as -ide . Use name of a metal with a fixed charge

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Compounds and Their Bonds

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  1. Compounds and Their Bonds Ionic Compounds Naming Ionic Formulas

  2. How well do you know your cations and anions? Test Your skills!

  3. Naming Binary Ionic Compounds • Contain 2 different elements • Name the metal first, then the nonmetal as -ide. • Use name of a metal with a fixed charge Groups 1A, 2A, 3A and Ag, Zn, and Cd Examples: NaCl sodium chloride ZnI2 zinc iodide Al2O3 aluminum oxide

  4. Learning Check Complete the names of the following binary compounds: Na3N sodium ________________ KBr potassium ________________ Al2O3 aluminum ________________ MgS _________________________

  5. Solution Complete the names of the following binary compounds: Na3N sodium nitride KBr potassium bromide Al2O3 aluminum oxide MgS magnesium sulfide

  6. Ionic Compounds • Attraction between + (cation) ions and – (anion) ions • Electrons go from metals to nonmetals Electrons lost = Electrons gain

  7. Formulas of Ionic Compounds Formulas of ionic compounds are determined from the charges on the ions atoms ions Na + + F - Na+ + F - NaF sodium fluoride

  8. Writing a Formula Write the formula for the ionic compound that will form between Ba2+ and Cl. Solution: 1. Balance charge with + and – ions 2. Write the positive ion of metal first, and then the negative ion. Ba2+ Cl 3. Write the number of ions needed as subscriptsBaCl2

  9. Learning Check A. The formula for the ionic compound of Na+ and O2- is 1) NaO 2) Na2O 3) NaO2 B. The formula of a compound of aluminum and chlorine is 1) Al3Cl 2) AlCl2 3) AlCl3 C. The formula of Fe3+ and O2- is 1) Fe3O2 2) FeO3 3) Fe2O3

  10. Solution A. The formula for the ionic compound of Na+ and O2- is 2) Na2O B. The formula of a compound of aluminum and chlorine is 3) AlCl3 C. The formula of Fe3+ and O2- is 3) Fe2O3

  11. Learning Check Building compounds activity!!

  12. Multivalent Ions Many form 2 or more positive ions 1+ 2+ 1+ or 2+ 2+ or 3+ Ag+ Cd2+ Cu+,Cu2+ Fe2+, Fe3+ silver cadmium copper(I) ion iron(II) ion ion ion copper (II) ion iron(III) ion Zn2+ zinc ion

  13. Names of Variable Ions Use a roman number after the name of a metal that forms two or more ions Transition metals and the metals in groups 4A and 5A FeCl3(Fe3+) iron (III) chloride CuCl (Cu+ ) copper (I) chloride SnF4 (Sn4+) tin (IV) fluoride PbCl2 (Pb2+) lead (II) chloride Fe2S3 (Fe3+) iron (III) sulfide

  14. Learning Check Complete the names of the following binary compounds with variable metal ions: FeBr2 iron (_____) bromide Cu2O copper (_____) oxide SnCl4 ___(_____ ) ______________ Fe2O3 ________________________ CuS ________________________

  15. Solution Complete the names of the following binary compounds with variable metal ions: FeBr2 iron ( II ) bromide Cu2O copper ( I ) oxide SnCl4tin (IV) chloride Fe2O3iron (III) oxide CuS copper (II) sulfide

  16. Learning Check Name the following compounds: A. CaO 1) calcium oxide 2) calcium(I) oxide 3) calcium (II) oxide B. SnCl4 1) tin tetrachloride 2) tin(II) chloride 3) tin(IV) chloride C. Co2O3 1) cobalt oxide 2) cobalt (III) oxide 3) cobalt trioxide

  17. Solution Name the following compounds: A. CaO 1) calcium oxide B. SnCl43) tin(IV) chloride C. Co2O32) cobalt (III) oxide

  18. Polyatomic Ions A group of atoms with an overall charge. NH4+ ammonium OH- hydroxide NO3- nitrate NO2- nitrite CO32- ______________ HCO3- hydrogen carbonate (bicarbonate) LecturePLUS Timberlake

  19. More Polyatomic Ions Sulfur SO42- sulfate SO32- sulfite HSO4-hydrogen sulfate HSO3- hydrogen sulfite Phosphate PO43- phosphate PO33- ____________ HPO42- _______________________________ H2PO4- dihydrogen phosphate LecturePLUS Timberlake

  20. Contain at least 3 elements • Name the nonmetals as a polyatomic ion • Examples: NaNO3 Sodium nitrate K2SO4Potassium sulfate Al(HCO3)3Aluminumbicarbonate or Aluminumhydrogen carbonate LecturePLUS Timberlake

  21. Lesson Check!!!

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