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Katarina [22]
3 years ago
11

If an unknown substance CANNOT be broken down into simpler substances, it is

Chemistry
2 answers:
Fynjy0 [20]3 years ago
7 0
If an unknown substance CANNOT be broken down into simpler substances, it is AN ELEMENT made of one kind of atom.
7nadin3 [17]3 years ago
3 0

Answer:

element

Explanation:

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