Unit 8 - Advanced Bonding Concepts

I Can...Statements
Assessment Questions
Unit 8 Assessment Key

Solids (C4.3c-i)

  • Compare the relative strengths of forces between molecules based on the melting point and boiling point of the substances.
  • Compare the strength of the forces of attraction between molecules of different elements. (For example, at room temperature, chlorine is a gas and iodine is a solid.)
  • Predict whether the forces of attraction in a solid are primarily metallic, covalent, network covalent, or ionic based upon the elements' location on the periodic table.
  • Identify the elements necessary for hydrogen bonding (N, O, F).
  • Given the structural formula of a compound, indicate all the intermolecular forces present (dispersion, dipolar, hydrogen bonding).
  • Explain properties of various solids such as malleability, conductivity, and melting point in terms of the solid's structure and bonding.
  • Explain why ionic solids have higher melting points than covalent solids. (For example, NaF has a melting point of 995°C while water has a melting point of 0° C.) 
       *  Shrinking Liquid-A Hydrogen Bonding Demo - Welcome to the ninth issue of Teacher Connection, a free online monthly newsletter to provide teachers with effective teaching techniques and helpful ideas and tools for explaining chemistry and mathematics concepts to students of all levels. 
       *  Floating Paper Clip - Demonstrates polar attractions between molecules. Queen's University Science Education Resource Page 
       *  IMF WS 
              IMF WS 1 
              IMF WS 2 
              Molecular Polarity WS 
       *  Electronegativity and Bonding Activity 
              Polar Bears and Peguins Teacher - A sample lesson from Living By Chemistry published by Key Curriculum Press focusing on electronegativity, polar bonds, non polar bonds, and ionic bonds. Key Curriculum Press Permission Document
              Polar Bears and Penguins Student - A sample lesson from Living By Chemistry published by Key Curriculum Press.
      *  Polarity and Solubility 
              Disappearing Cup Demonstration
              The Peanut Race
      *  Bonding Types Lab
              Bonding Types Lab
              Teacher Notes 
      *  IMF Notes 
      *  Marble Race Demo 
      *  Water Song Activity
              Water Song Explanation
              Water Song Lyrics
      *  Polar Molecule Notes 
      *  IMF Matrix Activity 
              IMF Matrix Activity 
              Teacher Notes
      *  IMF Lab
              Intermolecular Forces Lab
              Teacher Notes
      *  Forces of Attraction in Solids Notes 
      *  IMF Race
              IMF Race Track Procedure
              IMF Race Track Data Sheet
              Teacher Notes

Changes of State (C5.4c-e)

  • Explain why both the melting point and boiling points for water are significantly higher than other small molecules of comparable mass (e.g., ammonia and methane).
  • Explain why freezing is an exothermic change of state.
  • Compare the melting point of covalent compounds based on the strength of IMFs (intermolecular forces).
      *  Frozen Matter Activity
      *  Heat of Fusion of Ice