Question

Butene would have__carbon atoms and a__bond.

Answer 1

Answer: four , double

Step-by-step explanation:

Saturated hydrocarbons are defined as the hydrocarbons in which a single bond is present between carbon and carbon atoms. The general formula for these hydrocarbons is
`C_nH_(2n+2)`

Unsaturated hydrocarbons are defined as the hydrocarbons which have double or triple covalent C-C bonds. They are known as alkenes and alkynes respectively. The general formula for these hydrocarbons is
`C_nH_(2n)` and
`C_nH_(2n-2)`

Butene is
`CH_3CH_2CH=CH_2` has molecular formula of
`C_4H_8` and thus has four carbon atoms and one double bond or pi bond.