When scientists look at these examples, what do they know about the atoms? . carbon–12 carbon–14. a. the number of neutrons in each atom is not the same.. b. the atoms have different properties.. c. one atom has more protons than the other.. d. only one of the examples is an isotope.

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?