Question

content on physical and chemical change for project​

Answer 1

a chemical change produces a new substance, while a physical change does not. A material may change shapes or forms while undergoing a physical change, but no chemical reactions occur and no new compounds are produced.

Chemical and Physical Change Examples

A chemical change results from a chemical reaction, while a physical change is when matter changes forms but not chemical identity.

Examples of chemical changes are burning, cooking, rusting, and rotting.

Examples of physical changes are boiling, melting, freezing, and shredding.

Often, physical changes can be undone, if energy is input. The only way to reverse a chemical change is via another chemical reaction.

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