Asked by Austin
If an unknown substance cannot be broken down into a simpler substances, it is
1. a compound
2. an element
3. made of one kind of atom
4. both 2 and 3
1. a compound
2. an element
3. made of one kind of atom
4. both 2 and 3
Answers
Answered by
Arwen_Undomiel
4. both 2 and 3
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