Question

4. Write two importance of physical change.​

Answer 1

Explanation:

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Physical change is an important concept in chemistry; it describes changes to things that don't result in brand-new substances. Physical change upholds the molecular structure of a substance. Water, for example, is composed of two hydrogen molecules and one oxygen molecule, no matter whether it's boiling or frozen.

Answer 2

Answer:

The importance of physical change are as follows

1. They are reversible
2. No new substance are formend