Question

Mention three physical and chemical changes
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Answer 1

Answer:

physical changes:

melting of ice

drying of cloths

tearing a paper

chemical changes:

rusting of iron

ripening of fruit

burning of wood

Explanation:

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Answer 2

Answer:

Examples of chemical changes are burning, cooking, rusting, and rotting. Examples of physical changes are boiling, melting, freezing, and shredding. Many physical changes are reversible, if sufficient energy is supplied. The only way to reverse a chemical change is via another chemical reaction

Explanation:

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.

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