Consider the three equations below. mc017-1.jpg mc017-2.jpg mc017-3.jpg which statement do these reactions best support? beta decay occurs only in certain atoms. alpha decay occurs only in certain atoms. chain reactions play important roles in the process of nuclear fission. nuclear fusion plays an important role in making elements that are heavier than helium.

Answer : Nuclear fusion plays an important role in making elements that are heavier than helium.

Explanation : In the given attachment it is clearly observed that nuclear fusion reactions are playing a vital role in making the small elements fuse together to form a higher element as a product. This is observed in those elements which are heavier than helium. The atoms of the elements fuse together and make a larger atomic molecule which is the sum of both the elemental masses.

Sorry i dont understand the question can you rephase 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.