Question

What happens when water boils?

A.
The molecules move with increasing speed.
B.
The molecules slow down.
C.
The molecules break apart into hydrogen and oxygen.
D.
The molecules disappear.

Answer 1

A

Step-by-step explanation:

Heating a substance makes its atoms and molecules move faster. This happens whether the substance is a solid, a liquid, or a gas. It’s not easy to see it happen in a solid but let’s try it for a liquid and a gas. See if you can tell that heat makes molecules move!

Answer 2

A. The molecules move with increasing speed

Step-by-step explanation:

When water boils it heats up. Which can result molecules inside to speed up and can cause the water to be hot. If water is very far apart and is going very fast it is hot liquid water. if molecules are closer and are staying still or slow, the water is solid water which is Ice. When molecules are floating away from each other slowly is gas.

Hope this helps :)