Question: The compound at right has (for obvious reasons) been given the trivial name squaric acid. Squaric acid is a diprotic acid, with both protons being

The compound at right has (for obvious reasons) been given the trivial name squaric acid. Squaric acid is a diprotic acid, with both protons being more acidic than acetic acid. In the dianion obtained after the loss of both protons, all of the carbon-carbon bonds are the same length as well as all of the carbon-oxygen bonds. Provide a resonance explanation for these observations.

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