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Chapter 9 Chemical Names and Formulas
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Do Now Objective Homework
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9.1 Monatomic Ions Cations Anions Ions of Transition Metals
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9.1 Polyatomic Ions The names of most common polyatomic anions end in -ite or -ate -ite -ate SO 3 2- sulfite SO 4 2- sulfate NO 2 - nitrite NO 3 - nitrate ClO 2 - _________ _______ _________
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9.2 Naming and Writing Formulas for Ionic Compounds Binary Ionic Compounds Cation name followed by anion name
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9.2 Naming and Writing Formulas for Ionic Compounds Binary Ionic Compounds Cation name followed by anion name Remember – not all ions are monatomic
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Practice Naming What do you call something made of a combination of …. What is the formula? Show charges if it helps Cesium and Oxygen Calcium and Iodine Iron and Nitrogen Sulfur and Potassium Lithium, Oxygen and Sulfur
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Practice Naming What do you call something made of a combination of …. What is the formula? Cesium and OxygenCesium Oxide Cs 2 O Calcium and IodineCalcium Iodide Ca 2+ I 2 - Iron and Nitrogen Sulfur and Potassium Lithium, Oxygen and Sulfur
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Practice Naming What do you call something made of a combination of …. What is the formula? Cesium and OxygenCesium Oxide Cs 2 O Calcium and IodineCalcium Iodide Ca 2+ I 2 - Iron and NitrogenIron (II) Nitride Fe 3 2+ N 2 3- Sulfur and Potassium Can’t for ionic compound – Both Non-Metals Lithium, Oxygen and Sulfur Lithium Sulfite Li Lithium Sulfate Li
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Do Now – Pop Quiz Objective – Naming and Writing Formulas for Molecular Compounds Homework – Pg. 270 # 22-25
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Check your homework
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Writing Formulas for Binary Ionic Compounds Write the symbol for the cation and then the anion, then add subscripts to balance the charges. What do you get when you make an ionic compound with nitrogen and calcium?
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Writing Formulas for Binary Ionic Compounds Write the symbol for the cation and then the anion, then add subscripts to balnce the charges. Calcium Nitride Ca 2+ N 3-
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Writing Formulas for Binary Ionic Compounds Write the symbol for the cation and then the anion, then add subscripts to balance the charges. Calcium Nitride Ca 3 2+ N 2 3- Ca 3 N 2 +6 -6
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Names and Formulas for Molecular Compounds (Covalent Bonding) Formulas – recall how we have used the valence electron information to know how many of each element we need to satisfy the octet rule.
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What do we call this?
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Dihydrogen Monoxide
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Prefixes for Molecular Names 1 Mono- 2 Di- 3 Tri- 4 Tetra- 5 Penta- 6 Hexa- 7 Hepta- 8 Octa- 9 Nona- 10-Deca
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Ionic Compounds- Precipitate Lab Combine 1 to 2 drops of each ionic compound to be reacted. Describe both the precipitate and the aqueous solution. Give the name and balanced formula for the precipitate. Clean up you materials and get your data signed.
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Do Now – Get out your Periodic Tables Objective – Add Naming Rules to Periodic Tables Chapter 9 quiz HW – Read Chapter 10 (may take multiple nights) Bring calculator to every lesson or lab for Chapter 10
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Ionic Compound Naming and Formula Rules Cation then Anion Cation = name of element (Roman Numerals) - ous - ic Anion = Endings (look on tables) - ide - ite - ate Molecular Naming and Formula Rules *List elements with prefixes *End in -ide 1 Mono- 2 Di- 3 Tri- 4 Tetra- 5 Penta- 6 Hexa- 7 Hepta- 8 Octa- 9 Nona- 10-Deca All formulas must be balanced
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