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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 the mass of a metal oxide may be greater than the mass of the metal when oxygen reacts with the metal?.
- A.Oxygen is added to the metal during the reaction
- B.The metal loses mass during the reaction
- C.The reaction produces a gas that escapes
- D.The metal oxide is less dense than the metal
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