The correct net ionic equation for the process which occurs when aqueous solutions of the electrolytes AgNO3 and Na2S are mixed is: A.
NO3-(aq) + Na+(aq) --> NaNO3(s)

B.
2Ag+(aq) + S2-(aq) --> Ag2S(s)

C.
Ag+(aq) + S-(aq) --> AgS(s)

D.
Ag+(aq) + NO3-(aq) --> AgNO3(s)

E.
no reaction occurs

Which best describes the activation energy of a chemical reaction? a. the combined energy of all the reactants b. the amount of energy required for a reaction to occur c. the difference in energy between products and reactants d. the potential energy stored in the bonds of reactants and products