Draw the five isomers for hexane.
To start, always draw the carbon backbone. The first isomer is the straight-chain isomer, C-C-C-C-C-C. Then, determine the carbon backbone structure of the other isomers by arranging the carbon atoms in four other unique ways.
\begin{matrix} C&-&C&-&C&-&C&-C \\ &&&&& &| \\&&&&&&C \end{matrix} \\\begin{matrix} &C&-&C&-&C&-C \\ &&&|& &| \\&&&C&&C \end{matrix} \\\begin{matrix}&&&&C\\&&&&|\\ C&-&C&-&C&-&C \\ &&&&|& \\&&&&C& \end{matrix} \\\begin{matrix} C&-&C&-&C&-&C&-C \\ &&&&|& \\&&&&C& \end{matrix}To finish, fill in all the hydrogen atoms so that each carbon has four bonds.