Question

2. What are irreversible physical change and crystals​

Answer 1

Answer:

With a physical change, a substance changes form, but does not transform into a different substance. Many physical changes can be reversed, like water freezing to form ice. But some physical changes cannot, such as an egg being cracked or wood being ground into sawdust. ... Most chemical changes are irreversible.

Explanation:

please mark me brainlest or follow me pleaseeeeeee