4. 6.5a Which of these have a positive charge and are found in the nucleus of an atom?
Neutrons
Protons
Electrons
Elements

Is there an image with it

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.

I’m really not sure what’s the answer. sorry