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A) Nomenclature (naming) compounds 1. Covalent 2. Ionic B) Writing proper formulas

A) Nomenclature (naming) compounds 1. Covalent 2. Ionic B) Writing proper formulas. Covalent or Ionic. Ionic: ___________ + _____________ Covalent: __________ + ___________ NaCl I or C SO2 I or C P2Cl4 I or C AgCl I or C FeCl3 I or C MnO I or C CaO I or C NS2 I or C.

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A) Nomenclature (naming) compounds 1. Covalent 2. Ionic B) Writing proper formulas

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  1. A) Nomenclature (naming) compounds1. Covalent2. Ionic • B) Writing proper formulas

  2. Covalent or Ionic • Ionic: ___________ + _____________ • Covalent: __________ + ___________ • NaCl I or C SO2 I or C • P2Cl4 I or C AgCl I or C • FeCl3 I or C MnO I or C • CaO I or C NS2 I or C

  3. Naming molecular compounds • Covalent Bonds Non-metal + non-metal • Prefixes are used to determine the number of each element (Except when the first element has only ONE (1) • Number Prefix • 1 _______- 6 ______- • 2 _______- 7 ______- • 3 _______- 8 ______- • 4 _______- 9 ______- • 5 _______- 10 ______- • First element = # prefix + element name • Second element = # prefix + element prefix + “ide”

  4. COVALENT COMPOUNDS • H2O ____________________ • CO2 ____________________ • CCl4 ____________________ • P2S4 ____________________

  5. N = NITRogen P = PHOSPHorus S = SULFur Cl = CHLORine Br = BROMine NITRide PHOSPHide SULFide CHLORide BROMide 2nd Element names (non-metals)

  6. WRITING FORMULAS from names • Determine each element & number • Tetrasulfur pentaoxide • Octanitrogen difluoride

  7. COVALENT COMPOUNDS

  8. Naming BINARY (2 elements) IONIC (one charge ONLY) • Some Ionic compounds have more than 2 elements. • NaSO4 Ca3(PO4)2 • (NH3)2SO4 MnSO4 • Some metals have more than one charge • Fe (+2, +3) Sn (+2, +4)

  9. Identification of compounds: List as either Covalent or Ionic. If Ionic, list as either Binary or Ternary (more than 2 elements) • 1. CO2 I or C if Ionic: Binary or Ternary • 2. CaCl2 I or C if Ionic: Binary or Ternary • 3. S2O5 I or C if Ionic: Binary or Ternary • 4. Na2SO4 I or C if Ionic: Binary or Ternary • 5. CoCl3 I or C if Ionic: Binary or Ternary • 6. Fe2O3 I or C if Ionic: Binary or Ternary • 7. N2Cl4 I or C if Ionic: Binary or Ternary • 8. Mn3(PO4)4 I or C if Ionic: Binary or Ternary

  10. Binary Ionic (one charge) • Name the metal • Name the non-metal prefix + “ide” • CaCl2 = Calcium chloride • Li2O = Lithium oxide

  11. Writing formulas of Binary Ionic • Determine the metal and its charges • Determine the non-metal and its charges • Criss-cross if necessary • 1. Lithium chloride 4. Potassium phosphide • 2. Calcium oxide 5. Boron fluoride • 3. Aluminum sulfide 6. Barium phosphide

  12. Determine the name from the formula • 1. Na2O 5. AlP • 2. Al2S3 6. Be3N2 • 3. Ba3P2 7. CsBr • 4. KI 8. Mg3N2

  13. REVIEW: Identifying IONIC & COVALENT FORMULA Ionic or Covalent Name CO2 I or C _________________ Na2S I or C _________________ Al2S3 I or C _________________ S2O5 I or C _________________

  14. “Up to this Point” • Covalent: _________________ + __________________ • Ionic: _________________ + __________________ • Binary: • Ternary: • Metal with only one charge:

  15. NEXT: Metals with more than one charge • LIST THE TWO POSSIBLE CHARGES AND THEIR APPROPRIATE NAME WITH ROMAN NUMERAL • Symbol Name • Iron: • Cobalt • Copper:

  16. Naming: Binary Ionic more than one charge • You must determine the charge of the metal. • (“REVERSE” Crisscross) • Co2S3 _________________________ • CoCl2 _________________________ • FeO _________________________ • FeP _________________________

  17. Formula for Binary Ionic more than one charge. • a. chromium (III) chloride _______________________ • b. tin (IV) oxide _______________________ • c. lead (II) oxide _______________________ • d. copper (II) iodide _______________________ • e. cobalt (II) oxide _______________________ • f. cobalt (III) oxide _______________________

  18. Naming Binary Ionic (more than one charge) • a. SnBr2 _______________________ • b. SnBr4 _______________________ • c. CrO _______________________ • d. Cr2O3 _______________________ • e. Fe2O3 _______________________ • f. HgI2 _______________________

  19. Write the formula • a. chromium (III) sulfide ________________ • b. manganese (IV) oxide ________________ • c. gold (III) chloride ________________ • d. titanium (IV) chloride ________________ • e. iron (II) bromide ________________ • f. iron (II) oxide ________________

  20. Write the proper name • a. PbCl2 _________________________________ • b. Fe2O3 _________________________________ • c. SnI2 _________________________________ • d. Hg2O _________________________________ • e. HgS _________________________________ • f. CuI _________________________________

  21. TERNARY COMPOUNDS: • Consist of a metal and a POLYATOMIC ion. • Poly = many atomic = atom ion = charge particle • A group of atoms that act as one large atom. Contains a specific charge.

  22. List of Polyatomic Ions

  23. Determining charges

  24. Identifying the polyatomic • When determining the formula: ends in “ate” or “ite”, except HYDROXIDE and CYANIDE • Or if it begins with AMMONIUM • Circle the polyatomic ion: • Calcium sulfate Aluminum phosphate • Tin (II) tartrate Ammonium oxide • Sometimes you can have two polyatomic ions • Ammonium sulfate

  25. Identifying the polyatomic ionfrom a formula • The polyatomic ion is always in a TERNARY compound. • It’s always after the METAL, unless the compound begins with NH4 (ammonium) • Draw a line between the (+) side and the (-) side • Circle the polyatomic ion • Li2SiO3 Al2(SO4)3 • LiClO3 NH4Br

  26. Naming the Polyatomic Ion

  27. Naming Ternary • Identify the ternary compound. • Determine whether or not the METAL requires a ROMAN NUMERAL (contains more than one charge===GREEN) • Name the Ternary compounds • CaSO4 : ___________________________ • Mn3(PO4)4 : ______________________________ • NH4Cl :____________________________

  28. Determining formulas for Ternary compounds. • Determine the charge of the CATION (+) ion either the METAL or NH4 • Determine the charge of the POLYATOMIC ion. • CRISSCROSS if necessary • Calcium sulfate:________ Barium hydroxide:________ • Iron (III) carbonate:_______ Ammonium sulfide:________

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