Figure 20.3 shows the structures of the hydrocarbons propane and butane. Discuss the arrangement of the electron pairs around each of the carbon atoms in these molecules. Are these molecules linear? Why or why not?

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Figure 20.3 shows the structures of the hydrocarbons propane and butane. Discuss the arrangement of the electron pairs around each of the carbon atoms in these molecules. Are these molecules linear? Why or why not?

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