Which of the following substances is a compound

All cells are made of four types of acids, lipids, proteins, and carbohydrates.

Stage in which a typical star has completely stopped fusion

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?