1. Convert 1m3 to cm3.

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.

It is a ok  i know i have a brain functioning well.                                                                                                                                                           

What are the activitys?   sorry if this took your points : (

The answer is a. stable, hope i ya