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erastova [34]
3 years ago
5

Why are chemical changes considered "unseen" ?

Biology
2 answers:
Zielflug [23.3K]3 years ago
6 0
Because they take place at an atomic level and are unable to be seen by the human eye
alexira [117]3 years ago
5 0
They are unseen because it is physically impossible to see a chemical change with a human eye.
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