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Perfect! From experience, we know that ice and water are made of the same substance. For example, if we remove the ice from the freezer, due to the heat in the room, we get back water.
Consider another example. You take a piece of paper and burn it. Which of the following is true?
  • The unburnt paper and the burnt paper are made of the same substance. They are just present in different forms
  • The unburnt paper and the burnt paper are made of different substances