The law of conservation of momentum applies: A. to both elastic and inelastic collisions. B. to a single object at rest.
C. only to a moving object hitting a stationary object.
D. only to two moving objects colliding.

I'm not sure but i will try to find out

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.

If this is a true or galse then its true but if not then what is the question?