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Why is it a chemical change when kernels corns are heated into popcorn

User Vitamin C
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2 Answers

4 votes
Because, you can’t take the popcorn and turn it into kernels again.
User Shahnur
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When popcorn is popped, liquid inside the kernel is changed to steam. Pressure from the steam builds up inside the kernel. When the pressure reached a critical stage the kernel pops turning itself inside out. This is a PHYSICAL CHANGE.
User Baskaran
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