Question

how do Copper react with oxygen. ???
​

Answer 1

Answer:

Heated copper metal reacts with oxygen to form the black copper oxide. The copper oxide can then react with the hydrogen gas to form the copper metal and water. When the funnel is removed from the hydrogen stream, the copper was still be warm enough to be oxidized by the air again.

Answer 2

Answer:

2Cu + O2 → 2CuO

Copper oxide is formed.

Hope it's helpful

Please mark me as Brainliest