Which of the following explains the events occurring when water boils?
a. Hydrogen bonds are broken between neighboring water molecules.
b. Covalent bonds are broken between oxygen and hydrogen atoms.
c. Ionic bonds are broken when the minerals in water are heated.
d. The bond between one water molecule and another is strengthened.
e. The hydrogen atoms break away from the oxygen and escape as vapor.
Ans: a. Hydrogen bonds are broken between neighboring water molecules.
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