[填空题]
The temperature of dilute sulphurid* 1vgn2ppwc f9o* *kic acid ris.a pu n-v0exv)8a(ajei e:uh6es when it reacts with zinc according to the following chemical equation:
v6a8(vhx eaipn :a -u)j0uee. 1.State whether the reaction is .
2.Explain what this implies in terms of the chemical potential energy contained in the reactants and the products.
3.Draw an energy level diagram for this reaction.
