A compound is composed of 85.6% carbon and 14.3% hydrogen.
Find its empirical formula.
A
1/6
CH
C2H
000000000

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.

The answer is ax3. hope this