Draw the Lewis structure for methane (CH4) and ethane (C2H6) in the box below. Then predict which would have the higher boiling

Answer:

Ethane has a greater boiling point.

Explanation:

When examining the Lewis structures, it's crucial to remember that each atom should ideally possess 8 electrons (excluding hydrogen). Both carbons contain 4 valence electrons. Thus, for methane, placing the hydrogens around carbon allows the carbon to achieve an octet of 8 electrons. In the case of ethane, the atoms bond together, and therefore, three hydrogens need to surround each carbon to ensure that they each have 8 electrons.

The primary distinction between methane and ethane is the presence of an extra carbon. The additional carbon in ethane results in an increased surface area for interactions, which necessitates providing more energy to transition the substance from liquid to gas, leading to ethane exhibiting a higher boiling point.

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