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Copper turns a green-brown when it is exposed to oxygen in air. What chemical property of oxygen causes this effect? A. its reactivity B. its volume C. its mass D. its flammability
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Copper turns a green-brown when it is exposed to oxygen in air. What chemical property of oxygen causes this effect? A. its reactivity B. its volume C. its mass D. its flammability

User Dan Littlejohn
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4 votes

Answer:

A. reactivity

Step-by-step explanation:

User Tanvi B
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4 votes

Answer:

A. its reactivity

Step-by-step explanation:

It's reactivity because copper was exposed to air and if it is reactivity it must be exposed to air

User Lenox
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