True/False: Atoms of the same elements have different properties

The formula is (nh4)2co3

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.

H tricky one let me think and get back to u

They make up examples of physical properties