complete the following reaction: 1.CH3-CH-_CH2+H2O 2.CH2-CH2+Br2

Your symbolism is not clear.

To complete the given reactions, we need to determine the missing reactant or product for each reaction step.

Reaction 1: CH3-CH-_CH2 + H2O

Based on the given reaction, we have a compound with a missing atom indicated by the underscore (_) symbol. To determine the missing atom, we need additional information such as the functional groups or any other relevant context.

Please provide additional information so that we can help you complete the reaction.

Reaction 2: CH2-CH2 + Br2

For the second reaction, it seems that a substitution reaction is taking place, given the presence of Br2. This suggests that an atom or group will replace one or both of the hydrogen atoms in CH2-CH2.

Common substitution reactions involve bromine (Br2) as an electrophile that can add to the double bond in an alkene, like CH2=CH2. As a result, one or both of the double-bonded carbons could become substituted by a bromine atom.

The possible products for the reaction are:

CH2-CH2 + Br2 -> CH2Br-CH2Br
CH2-CH2 + Br2 -> CH2Br-CH2H

Please note that without further information or context, we cannot determine the exact product for this reaction.