Consider the reaction below.
21 (aq) + Cl2(g) --> 201- (aq) +2(aq)
Which half reaction correctly describes the reduction that is taking place?

What are the statements?

Answerδh > 0explanationc₆h₆  (s)  → c₆h₆ (l)if you are changing it from a solid to a liquid, you are pretty much melting the solid. this requires heat energy. therefore, the reaction is endothermic (takes in energy); the system enthalpy increases as the reaction proceeds: δh > 0.