What happens when Copper metal is heated in air?Immersive Reader
Copper does not react with oxygen even at high temperature
Copper is strongly heated to form black coloured Copper oxide
Copper burns when heated to form brown coloured Copper oxide.
None of these.
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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.
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Copper burns when heated to form brown colored Copper oxide
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