Lewis structures cannot
show the number of valence electrons.
show the location of bonds.
show the strength of bonds.
show how many bonds are present in a molecule.

The correct answer is cannot show the strength of the bonds. It's the most basic type of drawing used when drawing things like covalent bonds where you see the lines as connections and you see the dots as electrons. They don't show the strength, only the location and the number, as well as the number of valence electrons.

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