# Reaction characteristics of alkaline battery [closed]

I'm currently struggling with understanding why electrochemical reactions take place the way they do.

For example, in an alkaline-manganese battery manganese-dioxide is getting reduced by reacting with water whereby the electron is actually absorbed by the hydroxide molecule (?):

$$\ce{MnO2 + H2O + e- -> MnO(OH) + OH-}$$

Essentially, my question is why does manganese give up the bond with the two oxygens and instead bonds with one oxygen which itself is bonded with an hydroxide and why does the other hydroxide absorb the electron instead of the other molecules.

Would manganese-dioxide and water also react without the transferred electron?