Activity Number
110
Editable
Overview and Learning Objectives
Central Concepts
Textbook References
Benchmarks and Standards
Activity Credits
Requirements

Potential Energy in Covalent Bond Formation (a 5-page activity)

Interactive, scaffolded model

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This Activity Requires:

  • Java 1.5+ - Java 1.5+ is available for Windows, Linux, and Mac OS X 10.4 and greater. If you are using Mac OS X 10.3, you can download MW Version 1.3 and explore within it instead.

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Overview and Learning Objectives

Students manipulate increasingly strong bonds, from hydrogen-hydrogen to chlorine-chlorine, to H and Cl, watching the change in potential energy. Finally they make predictions about the likelihood of bond breaking starting with Cl2 and H2.

Students will understand that the strength of a bond is inversely proportional to the strength of its chemical potential energy.

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Central Concepts

Key Concept:

The strength of a bond is inversely proportional to the strength of its chemical potential energy.

Additional Related Concepts

Physics/Chemistry

  • Bonds
  • Breaking bonds
  • Covalent bonds
  • Potential energy

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Textbook References

  • Biology (Prentice-Hall) New York Edition - Chapter Eight: Photosynthesis
  • Biology (Prentice-Hall) New York Edition - Chapter Two - The Chemistry of Life

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Benchmarks and Standards

NSES

  • Life-Science: Matter, energy, and organization - 3 The chemical bonds of food molecules contain energy (Full Text of Standard)

  • Physical-Science: Matter Structure/Properties - 3 Bonds between atoms are created when electrons are paired up (Full Text of Standard)

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Activity Credits

Created by CC Project: Molecular Workbench using Molecular Workbench

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Requirements

  • Java 1.5+ - Java 1.5+ is available for Windows, Linux, and Mac OS X 10.4 and greater. If you are using Mac OS X 10.3, you can download MW Version 1.3 and explore within it instead.

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NSF Logo
These materials are based upon work supported
by the National Science Foundation under grant numbers
9980620, ESI-0242701, EIA-0219345, DUE-0402553, and 0628181.

Any opinions, findings, and conclusions or recommendations expressed in this
material are those of the author(s) and do not necessarily reflect
the views of the National Science Foundation.