The highly reactive elements in group 7a are known for forming salts. what are they called? a. transition metals b. metalloids c. halogens d. noble gases

Ithink that’s it’s b

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.