Resonance structures demonstrate one of the weaknesses of the Lewis structure. Molecules represented by a the Lewis structure either have single bonds, double bonds, or triple bonds. The multiple bonds can sometimes be drawn in more than one place. In reality, the multiple bond is averaged out over the molecule, so that all of the atoms may have a 1 1/2 bond or a 1 1/3 bond rather than a single or a double bond. Solution Resonance structures demonstrate one of the weaknesses of the Lewis structure. Molecules represented by a the Lewis structure either have single bonds, double bonds, or triple bonds. The multiple bonds can sometimes be drawn in more than one place. In reality, the multiple bond is averaged out over the molecule, so that all of the atoms may have a 1 1/2 bond or a 1 1/3 bond rather than a single or a double bond..