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Is it a physical change or a chemical change?

In class today, we did an experiment where we input food colouring on porous paper and dipped the paper in water. As a result, the dyes that make up the food colouring were separated so that you could see all of them. For example, a dot of turquoise food colouring was a streak of blue at the top fading to yellow and then to green.

Due to this separation, was the change of food colouring a physical or chemical change?

4 Answers

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  • Anonymous
    9 years ago
    Favorite Answer

    physical - it is a separation

    the molecules are still intact

    Source(s): Soc
  • Anonymous
    9 years ago

    phhsical because its still water. if you burnt something like trash it would be chemiciacal

  • Anonymous
    9 years ago

    Definitely chemical change, because its not something you can unchange/seperate.

  • 9 years ago

    chemical change pretty sure!!

    Source(s): took chem last yearr
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