Question

Which of the following is a reversible physical change?

a. burning coal
b. boiling water
c. chopping onions
d. bread rising in an oven

Answer 1

b. boiling water.

You can recover the water by cooling the steam gotten back to water.

Answer 2

Answer: Boiling water

Step-by-step explanation:

Boiling water is a reversible physical change because the temperature of the boiling water @100°C can return back to 0°C by cooling. A reversible change is a change that occurs when the product of a substance can be reversed back to its reactant (its original form) after undergoing a reaction.