The halogens are the elements of group 17 on the periodic table. Halogens combine easily with elements from group 1. When a halogen reacts with a metal, what type of compound is formed? A.
potassium
B.
salt
C.
noble gas
D.
alloy

Ibelieve it's celsius. hope this .

What do you not know about 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.