Sodium hydroxide with bromoethane

An elimination reaction is often in competition with a substitution reaction and the predominant product will depend on the reaction conditions. The reaction of bromoethane with sodium hydroxide could yield either ethene (by elimination of HBr) or ethanol (by substitution of the Br with OH). The former product predominates if the reaction is carried out in an alcoholic solution and the latter if the solution is aqueous. 

Write a balanced equation for the reaction of bromoethane with ethanolic sodium hydroxide. 

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