Answer:
Temperature and Boiling
When boiling occurs, the more energetic molecules change to a gas, spread out, and form bubbles. These rise to the surface and enter the atmosphere. It requires energy to change from a liquid to a gas (see enthalpy of vaporization).
Temperature rises when boiling occurs.
40
Explanation:
120 - 80 = 40
9.8
Maybe
the number of hydrogen atom in water is 2..
hope it helps
