Same chapter2 marksDifficulty: Easy
State two differences between a physical change and a chemical change.
Chemical Changes and Reactions
2 marksDifficulty: Easy
State three differences between a physical 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, the change is usually easily reversible and the composition of the substance stays the same. In a chemical change one or more new substances with new properties are formed, the change is generally not easily reversed and it is usually accompanied by an energy change.
No citable source has been recorded for this record. Treat it as practice material, not as fact.
Explanation
Melting ice is physical; burning magnesium is chemical.
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