Online Videos –

Chemical Bonding

These videos of our regular classes are available to our regular class students.

Each lesson is broken up into a few videos. In the description below each video, you can look for the content or question that you would like to view or revisit.

03  Chemical Bonding (Week 1)
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Video 1-1
  • Introduction

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Video 1-2
  • Metals and metallic bonds

  • Factors affecting metallic bond strength (Q1, Q2)

  • Other properties of metals

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Video 1-3
  • Ionic compounds and ionic bonds

  • Dot-and-cross diagrams (Q3)

  • Lattice energy and ionic bond strength (Q4 to Q7)

  • Other properties of ionic compounds

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Video 1-4
  • Covalent compounds and covalent bonds

  • Types of covalent bonds: sigma bonds, pi bonds, dative bonds

  • Factors affecting covalent bond strength (Q8, Q9, Q10)

03  Chemical Bonding (Week 2)
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Video 2-1
  • Simple molecules and their shapesdot-and-cross diagrams and VSEPR theory

  • Two electron group molecules and shapes: BeCl2, CO2

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Video 2-4
  • Five electron group molecules and shapes: PF5, SF4, BrF3, XeF2

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Video 2-2
  • Three electron group molecules and shapes: BF3, SO3, SO2, NO2

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Video 2-5
  • Six electron group molecules and shapes: SF6, BrF5, XeF4

  • Shapes of ions

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Video 2-3
  • Four electron group molecules and shapes: CH4, NH3, H2O

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Video 2-6
  • Short-cut method for drawing shapes of molecules and ions (Q16, Q18, Q20)

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Video 2-7
  • 3rd rule of VSEPR (Q24, Q27)

  • Practice (Q29)

03  Chemical Bonding (Week 3)
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Video 3-1
  • Electronegativity and bond polarity

  • Identifying non-polar molecules

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Video 3-4
  • Permanent dipole-permanent dipole (pd-pd) interactions

  • Factors affecting the strength of pd-pd interactions

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Video 3-7
  • Comparing the strength of id-id interactions (Q33).

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Video 3-2
  • Identifying polar molecules

  • Filling in polarity of molecules with common VSEPR shapes (Q32)

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Video 3-5
  • Instantaneous dipole-induced dipole (id-id) interactions

  • Factors affecting the strength of id-id interactions

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Video 3-8
  • Comparing the strength of intermolecular forces between molecules of similar sizes (Q34).

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Video 3-3
  • Introduction to intermolecular forces between simple molecules

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Video 3-6
  • Hydrogen bonds

  • Factors affecting the strength of hydrogen bonds

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Video 3-9
  • Employing the idea of van der Waals (VDW) forces (Q35).

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Video 3-10
  • Applying the idea of van der Waals (VDW) forces (Q36)

03  Chemical Bonding (Week 4)
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Video 4-1
  • Explanation of trends of boiling points (Q55, Q56)

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Video 4-2
  • Giant molecules

  • Giant covalent structures: diamond and graphite, and related physical properties (Q61)

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Video 4-3
  • Structure and physical properties (Q63, Q64)

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Video 4-4
  • Melting point trend of Period 3 elements (Q68)

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Video 4-5
  • Electrical conductivity trend of Period 3 elements

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Video 4-6
  • Intermediate bonding: ionic bonds with covalent character

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Video 4-7
  • Intermediate bonding (Q70, Q72)