ayeitsmaria16 ayeitsmaria16

22-02-2017
Biology

contestada

why are chemical changes considered "unseen" ?

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S9infinite S9infinite

22-02-2017

Because they take place at an atomic level and are unable to be seen by the human eye

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ZachariaH050305 ZachariaH050305

22-02-2017

They are unseen because it is physically impossible to see a chemical change with a human eye.

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