2. Combine lead (II) nitrate and potassium iodide solutions.
Pb(NO3)2+ Kl →

Do u have the n? or maybe the m?

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.