Question

what is physical change and chemical change?​

Answer 1

Answer:

Physical changes only change the appearance of a substance, not its chemical composition. Chemical changes cause a substance to change into an entirely substance with a new chemical formula. Chemical changes are also known as chemical reactions.

Explanation:

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Answer 2

Answer:

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

Examples for chemical changes are:

• Burning.
• cooking
• Rusting & rotting.

Examples of physical changes are:

• Boiling
• Melting
• Freezing & shredding.

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