Question

What happens when (Write the balanced equation involved) –

(i) Copper is heated in air ?​

Answer 1

Explanation:

copper is heated in air

2Cu + O2 = 2CuO

Answer 2

Answer:

heated copper metal reacts with oxygen to form the black copper oxide.when the funnel is removed from the hydrogen stream,the copper was still be warm enough to be oxidised by the air again.

• EQUATION= 2CU+O2=2CUO

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