Explanation:
A change that is unable to bring any difference in chemical composition of a substance is known as a physical change.
For example, change in shape, size, mass, volume etc are all physical properties.
So, when water melts faster on a cold drink then it means only the state of water is changing from solid to liquid and no change in chemical composition is taking place.
Whereas chemical changes are defined as the change which tend to show difference in chemical composition of a substance.
For example, toxicity, reactivity, combustion etc are all chemical properties.
A chemical change will always lead to the formation of a new compound.
Thus, we can conclude that when water will melt faster on a very cold soft drink then it is a physical change.
