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olasank [31]
2 years ago
10

Which substance can be decomposed by a chemical change? (1) Co (3) Cr(2) CO (4) Cu

Chemistry
1 answer:
kotykmax [81]2 years ago
7 0
Answer: (2) CO

Co, Cr, and Cu are elements. Elements cannot be broken down by a chemical change, but compounds can. Since CO is a compound, it can be decomposed by a chemical change.
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