Which is a physical change. 1. tarnishing of copper 2. mixing iron and sulphur3. explosion of fire crackers. 4. Adding zinc to dil. HCl .5. pouring lead nitrate in water.
Answers
Answered by
1
Answer:
2. mixing iron and sulphur
Explanation:
It becomes a mixture and retains the properties of both iron and sulphur.
Similar questions