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A 2.0-liter volume of hydrogen gas combined with 1.0 liter of oxygen gas to produce 2.0 liters of water vapor. Does oxygen udergo a chemical or Physical change?
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A 2.0-liter volume of hydrogen gas combined with 1.0 liter of oxygen gas to produce 2.0 liters of water vapor. Does oxygen udergo a chemical or Physical change?

User Eric Wiener
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Oxygen undergoes a chemical change
User Tim Van Laer
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