Which change happens when water boils?(1 point)
Responses
The forces between water molecules break, and the bonds between the atoms in water are unchanged.
The forces between water molecules become stronger, and the bonds between atoms in the water remain unchanged.
The forces between water molecules are unchanged, and the bonds between the atoms in the water break.
The forces between water molecules and the bonds between the atoms in the water molecules break.
The correct answer is: The forces between water molecules break, and the bonds between the atoms in the water are unchanged.
When water boils, it undergoes a physical change from a liquid to a gas. This happens when the temperature of the water reaches its boiling point, which is 100 degrees Celsius (212 degrees Fahrenheit) at sea level.
As the temperature increases, the kinetic energy of the water molecules also increases. Eventually, the energy becomes enough to overcome the forces of attraction between the water molecules. These forces, known as hydrogen bonds, are relatively weak compared to the covalent bonds that hold the water molecules together.
When the forces between water molecules are broken, the water molecules are able to escape the liquid phase and enter the gas phase as water vapor. However, the bonds between the atoms in the water molecules themselves remain unchanged. Each water molecule is still composed of two hydrogen atoms bonded to one oxygen atom, even in the gas phase.
So, when water boils, the forces between water molecules break, but the bonds between the atoms in the water remain unchanged.