O d Oe O a Which of the following bonding patterns of carbon is not allowed in the formation of an organic compound? C =C= b) d) e) O C a) 0: û

Like several other bonds, carbon-oxygen bonds have lengths and strengths that depend on the bond order. Draw Lewis structures for the following species, and arrange them in order of increasing carbon-oxygen bond strength.  HCO3-(H attached to O) CH4O CO32- H2CO CO

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The functional group in the following molecule are

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1. Draw a skeleton and make sure the bonds and lone pairs above are added. It is usually best to start with the carbon atoms, then add oxygens, then hydrogens, and fill in with lone pairs ( normally not on carbon ) or multiple bonds if necessary. С — С — С —о 2. Add the hydrogens to the carbon - oxygen skeleton. ннн H С —С | ннн 3. Complete the structure by adding lone pairs (2) to the oxygen atom. ннн H 0-H ннн

Organic chemistry HW A 3D representation of a cyclohexane (C6H12) molecule, a cyclic compound used in the manufacture of nylon and found in the distillation of petroleum, is shown. Name the geometry around each carbon atom.