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Chemistry :((((

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explain why the bond angles found for the molecules below is as given below.

Methane 109.5

Ammonia 107.5

water 104.5

  • Chemistry :(((( - ,

    Methane is a tetrahedral shape and those angles are 109.5 degrees.
    NH3 is tetrahedral electronic geometry with a lone pair of electrons. The lone pair repels the three H atoms so the angle is a little less than the 109.5.
    H2O has two lone pairs so the repulsion is more so. The angle is even less than that of NH3.

  • Chemistry :(((( - ,

    Thank you so much!!! :)))))

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