Question

write the chemical equation of heating copper and iron

Answer 1

Heated copper metal reacts with oxygen to form the black copper oxide. Thecopper 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 oxidizedby the air again.
sorry I dont no chemical equation of iron

Answer 2

Hii..

As u know ,

Metal + Oxygen => Metal Oxide

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☺️Heating of Cu in presence of air :--

2Cu(s) +O2 (g) => 2CuO (s)

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☺️Heating of Fe in presence of air ;-

4Fe(s) +3 O2(g) => 2Fe2 O3 (s)

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