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What is the major difference between the two-dimensional and three- dimensional models of ethane and methane? When might you choose to use a two-dimensional model rather than a three-dimensional model when representing one of the molecules?

  • chemistry -

    The major difference is that the two-dimensional model doesn't show the C-H angles. For example, three-dimensional models are needed to show stereo-isomerism

  • Chemistry -

    3D - more specific and harder to draw, 2D - much easier and provides more details.

    I sort of dragged it out for you :)

  • haley -

    I don't know

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