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1 December, 13:05

Both slicing a tomato and a chemical change such as burning toast cannot be reversed. However, why is slicing a tomato still considered only a physical change?

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  1. 1 December, 16:02
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    Physical changes do not change the chemical make up of a substance. Chemical changes do.

    Slicing a tomato only changes its proportion and size (which are physical properties), instead of anything inside the tomato. while burning toast changes something inside the toast, making it a chemical change, instead of a physical change.
  2. 1 December, 16:40
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    Physical changes do not change the chemical make up of a substance. Chemical changes do.

    Slicing a tomato only changes its proportion and size (which are physical properties), instead of anything inside the tomato.

    Meanwhile, burning toast changes something inside the toast, making it a chemical change, instead of a physical change.
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