Question

what is the fast and slow and physical and chemicalchange

Answer 1

Answer:

The changes which take place in a long period of time are called slow changes whereas that changes which take place in a short period of time are called fast changes. Examples: (a) Rusting of iron, formation of day and night, ripening of fruits, growing of trees are slow changes.

Physical changes are changes affecting the form of a chemical substance, but not its chemical composition. Physical changes are used to separate mixtures into their component compounds, but can not usually be used to separate compounds into chemical elements or simpler compounds

Explanation:

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