Some species are no longer living but we know they existed one time. we know this

In all living cells dna controls cellular activities by

Apiece of metal with a length of 1.42 cm was measured using four different instruments. which of the following measurements is the most accurate?

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?