Question

are physical changes are reversible? if not give two example​

Answer 1

Melting is an example of a physical change . ... Physical changes that involve a change of state are all reversible. Other changes of state include vaporization (liquid to gas),freezing (liquid to solid), and condensation (gas to liquid). Dissolving is also a reversible physical change.

Answer 2

Answer:

In general, physical changes are reversible using Physical means. For example. Salt is dissolved in water can be recovered by allowing the water to evaporate .But Physical change can also be irreversible too.