give me at least 30 questions of identification of physical and chemical change
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1) tearing of piece of paper.
2)cooking an egg
3) shredding paper
4) glass breaking
5) in folding of dress
6)lighting a piece of paper on fire
7)filling up a balloon with hot air
8)burning of candle
9) melting of wax
10)silver tarnishing
11) water boiling
2)cooking an egg
3) shredding paper
4) glass breaking
5) in folding of dress
6)lighting a piece of paper on fire
7)filling up a balloon with hot air
8)burning of candle
9) melting of wax
10)silver tarnishing
11) water boiling
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