1. 9.5 The Laws Governing How Compounds Form 1 > Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Chapter 9 Chemical Names and Formulas 9.1 Naming Ions 9.2 Naming and Writing Formulas for Ionic Compounds 9.3 Naming and Writing Formulas for Molecular Compounds 9.4 Naming and Writing Formulas for Acids and Bases 9.5 The Laws Governing How Compounds Form

2. 9.5 The Laws Governing How Compounds Form 2 > Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Do Now: Write names for 1. HBr 2. H 2 SO 4 3. NaOH Write formulas for 1. Hydrofluoric Acid 2. Phosphoric Acid 3. Potassium Hydroxide

3. 9.5 The Laws Governing How Compounds Form 3 > Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Do Now: Write names for 1. HBr – Hydrobromic acid 2. H 2 SO 4 – Sulfuric acid 3. NaOH – Sodium Hydroxide Write formulas for 1. Hydrofluoric Acid - HF 2. Phosphoric Acid – H 3 PO 4 3. Potassium Hydroxide - KOH

4. 9.5 The Laws Governing How Compounds Form 4 > Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Classify each as an Acid, Molecular, Binary Ionic, or Ternary Ionic Compound: 1. CuSO 4 5. V 2 S 3 2. CS 2 6. (NH 4 ) 3 PO 4 3. Fe(OH) 3 7. HF 4. CaO8. P 4 Se 3

5. 9.5 The Laws Governing How Compounds Form 5 > Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. - -Does it start with H? If it does it is an acid. - -Does it have a polyatomic ion? All polyatomic ions end in –ite or –ate except for Ammonium, Hydroxide, and Cyanide - -Is it covalent or ionic? If it is covalent, use prefixes & -ide. - -Can there be more than one cation (transition elements,Sn, or Pb)? If yes, use roman numerals to specify cation charge. Practicing Skills: Chemical Names and Formulas Naming Chemical Compounds

6. 9.5 The Laws Governing How Compounds Form 6 > Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. Classify each as an Acid, Molecular, Binary Ionic, or Ternary Ionic Compound: 1. Bromine Pentachloride5. Strontium Chloride 2. Lithium Ethanoate6. Sulfur Dioxide 3. Zinc Phosphide7. Aluminum Hydroxide 4.Hydrochloric Acid8. Cobalt (III) Carbonate

7. 9.5 The Laws Governing How Compounds Form 7 > Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. - -Are there prefixes? If yes, use them to determine subscripts. - -Is it an acid? Binary or ternary? - -Does it end in something other than –ide? If yes, then polyatomic. Use table 9.3 - -Are there Roman Numerals? If yes, use to specify cation charge. - -Make sure charges balance for ionic compounds Practicing Skills: Chemical Names and Formulas Writing Chemical Formulas From Names

8. 9.5 The Laws Governing How Compounds Form 8 > Copyright © Pearson Education, Inc., or its affiliates. All Rights Reserved. END OF 9.5