A chemical symbol is a way to identify a single element. A chemical formula is a way to identify a
that includes one or more
elements. *

1.Atoms
2. Molecule
3.element
4.subscript

Afraidsugar lol it’s the third one

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.

Answercanyon;