Compound x has the same molecular formula as butane but has a different boiling point and melting point. what can be concluded about compound x?

What are the similarities of physical and chemical change ?

Which statement best describes the he properties of iconic compounds ?

A5 mole sample of liquid acetone is converted to a gas at 75.0°c. if 628 j are required to raise the temperature of the liquid to the boiling point, 15.600 kj are required to evaporate the liquid, and 712 j are required to raise the final temperature to 75.0°c, what is the total energy required for the conversion?