A physical change involves a change in the form or appearance of a substance, without changing its chemical composition. Examples of physical changes include melting, freezing, boiling, and dissolving.
A chemical change, on the other hand, involves a change in the chemical composition and properties of a substance. Examples of chemical changes include burning, rusting, fermentation, and digestion.
It is important to note that physical and chemical changes can occur together, and it may sometimes be difficult to distinguish between the two. However, the key difference lies in whether the change affects the substance's composition or just its physical appearance.
Physical vs chemical change quick check
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