Question

distinguish between physical and chemical change.
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Answer 1

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.

Answer 2

Answer:

• Physical changes do not have formation of new substances. Chemical change leads to formation of new substances. Examples- Freezing of water, melting of wax, boiling of water, cutting of paper into pieces, etc. Examples- Rusting of iron, burning of coal, burning of magnesium ribbon, etc.
• A chemical change is a permanent change. A Physical change affects only physical properties i.e. shape, size, etc. ... Some examples of physical change are freezing of water, melting of wax, boiling of water, etc. A few examples of chemical change are digestion of food, burning of coal, rusting, etc.

Explanation:

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