Explain the difference between a physical and a chemical transformation!
A chemical transformation turns substances to other substances, a physical transformation does not.
Is ebullition a physical or chemical transformation?
It is a physical transformation.
What do you observe during ebullition?
The temperature doesn't change during the hole process.
Why?.
A substance like water consists of identical molecules. So they have to behave identically, for instance they have to be on the boil at the same temperature!