Enthalpy is the energy needed for the phase change called vaporization. It is the energy needed to break the bonds of the liquid molecules so that it can be converted to its gaseous form. Therefore, the greater the value of the enthalpy is, the stronger are the bonds of the substance. <em>Therefore, the answer is Aluminum.</em>
Answer:
C.
Explanation:
This is a reaction of elimination, because the water was removed and because of it double bond is formed.
Answer:
It just means that you are supposed to find an object that is not used in a vacuum. For example, a hair-brush is not use in a vacuum lol