Attachment of Atoms

[Rebecca_Arnold_3I]

In the reaction CH3CH=CHCH3 + HBr does it matter on which side the Hydrogen attaches to first? I know that it attaches to one of the Carbons that is involved with the double bond, but does it matter which Carbon?

[Katrina_Galian 1J]

I don't think it does.

[Jenny2G]

In the case that you have given no because it both carbons have the same amount of hydrogens bonded to it.

[Rebecca_Arnold_3I]

Ok thank you!
So if one carbon had fewer hydrogens attached to it, the H from the HBr would attach to the carbon with lesser hydrogens?

[Helen_Onuffer_1A]

I believe so, since a carbon with fewer H atoms bonded to it (or fewer bonds in general) would have a greater negative partial charge (since carbon wants 4 bonds to be most stable).

[Chem_Mod]

Draw it based on the product (location of H and halogen atoms that were added).