Need simplified structure

C8H14 Draw isomers of C4H8. There are five of them, including cyclic structures. make a model of each isomer. Draw carbon-chain structures of all of them and name them.

C8H12 constructs two models of the carbon chain in cyclohexane. use long sticks of bonds. rotate the bonds to make one model look like a boat and another on look like a chair. draw both structures and label accordingly.

C8H14 Dra carbon chains of all possible isomers. without making models and naming all of them.