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PLEASE HELP RIGHT AWAY!! THANK YOU :)
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 mass

C). its flammability

D). its volume

Respuesta :

Stephen46

Answer:

The answer is option A.

its reactivity

I hope this helps you.

kettynetty

Answer:

A) Reactivity

Explanation:

Reactivity is one of the characteristics of a chemical property. The copper that turned color due to air, has a different chemical composition.

It wouldn't be flammability - even though it is a chemical property, but nothing is burning.

All the other answer choises: mass and volume are physical properties. Basically the PHYSICAL characteristics which doesn't change the composition.

Hope this helps!

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