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What is the difference between alkanes, alkenes and alkynes?

Answer 1

Ellie Adams

These differ by their #"degree of unsaturation"#...

Alkanes have no DEGREES of unsaturation, and have formula #C_nH_(2n+2)#... See this answer and this one here.

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Answer 2

Lucy Alessi

Alkanes are saturated hydrocarbons with single bonds between carbon atoms. Alkenes are unsaturated hydrocarbons containing at least one double bond between carbon atoms. Alkynes are unsaturated hydrocarbons containing at least one triple bond between carbon atoms.

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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.