Question

state four differences between physical and chemical changes with an example of each​

Answer 1

Answer:

In a physical change, the molecules are rearranged while their actual composition remains same. In a chemical change, the molecular composition of a substance completely changes and a new substance is formed. Some example of physical change are freezing of water, melting of wax, boiling of water, etc.

Answer 2

Answer:

A physical change is a temporary and reversible change in which the physical properties of the substance changes without altering the composition of the substance.

Examples of physical change include changes in the size or shape of matter.

A chemical change is a permanent, not easily reversible change in which the identity of the substance is altered to produce one or more new substances.

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

Explanation:

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