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Chemistry

Select the true statements regarding the resonance structures of formate.

HCO2

Check all that apply:

Each oxygen atom has a double bond 50% of the time.

The actual structure of formate is an average of the two resonance forms.

Each carbon-oyxgen bond is somewhere between a single and double bond.

The actual structure of formate switches back and forth between the two resonance forms.

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  1. Did you omit the charge; should it be HCO2^-
    1 is not true. 4 is not true. Both 2 and 3 are true.

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  2. are

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  3. The actual structure of formate is an average of the two resonance forms. Thus, each carbon–oxygen bond is somewhere between a single and a double bond.

    Two and four are right.

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  4. Sorry. Two and three.

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