Answer:
The reaction when the Borane (BH3) is add to an alkene and form an alkylborane is shown below.
Explanation:
The boron of the borane does not have extra electron pairs, in this way the double bond of the alkene attacks the boron and the hydrogen belonging to the borane adheres to the carbon that is more substituted, thus forming an alkyl borane.
Answer:
The He₂ 2+ ion is more stable since it has a higher bond order (bond order = 1) than the He₂ + ion (bond order = 1/2).
Explanation:
Molecular orbital of He₂⁺
There are two electrons in bonding and 1 electron in antibonding orbital
Bond order =
=
Molecular orbital of He₂⁺²
There are two electrons in bonding and 0 electron in antibonding orbital
Bond order =
= 1
So bond order of He₂⁺² is 1 which is more stable than He₂⁺ whose bond order is .