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How does the structuaral formula of butane and butene differ?

Answer 1

You gots #C_4H_10# versus #C_4H_8#...the LATTER formula has ONE so-called degree of unsaturation.

And #C_4H_10# can form TWO structural isomers. Butylene can form FOUR structural or geometric isomers...the which are...

#H_2C=C-CH_2CH_3# #"1-butylene"#

#H_3C-CH=CHCH_3# #"2-butylene"#; how many geometric isomers can this form...?

#"isobutylene"# #(H_3C)_2C=CH_2#

#C_4H_8# can FORM TWO ring structures (and the ring ALSO REPRESENTS one degree of unsaturation). What are these?

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Answer 2

Axel Alvarado

However, butene (C₄H₈) has a double bond between two of the carbon atoms in its chain, which results in a slightly different arrangement of atoms compared to butane (C₄H₁₀), which has four carbon atoms bonded in a continuous chain with single bonds between each carbon atom and hydrogen atoms attached to the remaining bonds.

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.