Respuesta :
Answer:
Butene would have 4 carbon atoms and a double bond.
Explanation:
The chemical formula for butene is C[tex]_4[/tex]H[tex]_8[/tex]
Here is an image of it.

Answer:
we have
But :4
bond :ene :2
So
Butene would have _4_ carbon atoms and a _2_ bond