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Tresset [83]
4 years ago
9

Substance that cannot be broken down chemically into other substance are

Biology
1 answer:
marishachu [46]4 years ago
3 0
Pretty easy one, it is simply an element, because elements are the main 'starting points' of any other mixture, per say. This is because they are like building blocks - For example, H20, or water, is a combination of Oxygen and 2 hydrogen, which are all elements.
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