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More Ionic Compounds

More Ionic Compounds. Rules for Writing Ionic Formulas. The cation comes first in the chemical formula for ionic compounds. The anion is written second in the chemical formula for ionic compounds.

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More Ionic Compounds

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  1. More Ionic Compounds

  2. Rules for Writing Ionic Formulas • The cation comes first in the chemical formula for ionic compounds. • The anion is written second in the chemical formula for ionic compounds. • Write the symbol and the charge of the cation next to the symbol and charge of the anion. • Drop the charges down and swap them with the other symbol.

  3. For Example Mg 2+ Cl-1 MgCl2

  4. Let’s Practice Together: 1. Ca 2+ Cl-1 CaCl2 2. Al 3+ NO3-1 Al(NO3)3

  5. Let’s Practice Together • 3. Fe 3+ Cl – = • 4. Na + OH – = • 5. Na + S 2- = • 3. Fe 3+ Cl – = FeCl3 • 4. Na + OH – = NaOH • 5. Na + S 2- = Na2S

  6. Rules for Naming Ionic Compounds • Name the cation first. It is the same as the element name of the metal. • Name the anion second, but change the ending of the anion to –ide. For polyatomic ions, you write the name of the polyatomic ion.

  7. Practice • KBr = Potassium Bromide • MgCl2 = Magnesium Chloride • Li3N = • Al2O3 = • NaOH = • Na2CO3 = • KBr = Potassium Bromide • MgCl2 = Magnesium Chloride • Li3N = Lithium Nitride • Al2O3 = Aluminum Oxide • NaOH = Sodium Hydroxide • Na2CO3 = Sodium Carbonate

  8. Names Including Transition Elements: • First write the name of the cation element. • Include the roman numeral indicating the charge of the metal behind the name of the cation. • Then write the anion as instructed above.

  9. Examples: • Pb(NO3)2 = Lead (II) Nitrate • CuCl2 = Copper (II) Chloride • Fe(OH)2 = • FeCl3 = • Pb(NO3)2 = Lead (II) Nitrate • CuCl2 = Copper (II) Chloride • Fe(OH)2 = Iron (II) Hydroxide • FeCl3 = Iron (III) Chloride

  10. Names and Formulas 14. chlorite 15. perchlorate 16. hypochlorite 17. chloride 18. chlorate

  11. Names and Formulas 19. Sodium Iodide 20. Calcium Chloride 21. Potassium Sulfide 22. Magnesium Oxide 23. Lithium Sulfate 24. Ammonium Bromide 25. Calcium Nitride

  12. Names and Formulas 26. Cessium Phosphide 27. Potassium Bromate 28. Magnesium Hypochlorite 29. Lithium Oxide 30. Beryllium Phosphate 31. Ammonium Carbonate

  13. Names and Formulas 32. Sodium Bromate 33. Iron (III) Oxide 34. Iron (II) Iodate

  14. Names and Formulas 35. Be3N2 36. KClO3 37. Cu2O 38. MgSO3 39. (NH4)2S 40. Ca(IO3)2

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