【How-to】What is the difference between a resonance structure and a resonance hybrid

: a compound, molecule, ion, or radical exhibiting resonance and having a structure represented in the written form as the average of two or more structural formulas separated each from the next by a double-headed arrow the resonance hybrid of carbon dioxide is represented by⁻O−C≡O⁺⇆O=C=O⇆⁺O≡C−O⁻