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For Mass changes when a reactant or product is a gas, which option best supports this Unit 4.3 objective: Explain why thermal decomposition of a metal carbonate may appear to lose mass when carbon dioxide escapes?.
- A.The mass decreases because carbon dioxide escapes
- B.The mass increases due to the formation of carbon dioxide
- C.The mass remains the same as no atoms are lost
- D.The mass increases because oxygen is absorbed
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