Same chapter2 marksDifficulty: Easy
State three differences between a physical and a chemical change.
Chemical Changes and Reactions
2 marksDifficulty: Easy
State two differences between a physical change and a chemical change.
Original Khojo Papers practice question — not from a past board paper.
Answer
In a physical change no new substance is formed and the change is usually easily reversible, as when ice melts. In a chemical change one or more new substances with new properties are formed and the change is generally not easily reversed, as when magnesium burns in air.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
A chemical change is usually accompanied by an energy change.
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