Identify which of the following two reactions you would expect to occur more rapidly: (1) addition of hbr to 2-methyl-2-pentene or (2) addition of hbr to 4-methyl-1-pentene. explain your choice. addition of hbr to should be more rapid because the reaction can proceed via a carbocation. in contrast, addition of hbr to proceeds via a less stable, carbocation.

(1) addition of HBr to 2-methyl-2-pentene

Explanation:

In this case, we will have the formation of a carbocation for each molecule. For molecule 1 we will have a tertiary carbocation and for molecule 2 we will have a secondary carbocation.

Therefore the most stable carbocation is the one produced by the 2-methyl-2-pentene. So, this molecule would react faster than 4-methyl-1-pentene. (See figure)

The answer to that would be magnesium

It is a mixture. simply put, a compound must be pure, that is, of only one chemical structure and composition. a mixture is made of different chemical substances (i.e. elements, molecules, compounds) that are not chemically bonded to each other, but instead physically grouped together, as in the case of gasoline (a homogeneous solution).