Science, asked by PARVKUMAR, 1 year ago

copper is heated in air

Answers

Answered by Alhamdulillah786

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.

faizal14: google se answer diya hai na

faizal14: Heated copper metal reacts with oxygen to form the black copperoxide. 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 copperwas still be warm enough to be oxidized by the air again.

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Answered by sneha586

2cu (s) + O2 (g) = 2 CuO (s)

CuO (s) +H2 (g) = Cu (s) + H2O (g)

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sneha586: bhaia 1st question's answer is PCL5+

sneha586: PCL5+4H2OH3PO4+5HCL

sneha586: 2nd question answer is 2 SO2(g) + O2 (g)--^2 SO3.

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