Draw Lewis structures for the following organic molecules: (a) tetrafluoroethylene (C2F4),...

Draw Lewis structures for the following organic molecules: (a) tetrafluoroethylene (C₂F₄), (b) propane (C₃H₈), (c) butadiene (CH₂CHCHCH₂), (d) propyne (CH₃CCH), (e) benzoic acid (C₆H5COOH). (To draw C6H_{5COOH, replace an H atom in benzene with a COOH group.)}