Question

what will happen if copper oxide reacts with hydrogen ?​

Answer 1

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what will happen if copper oxide reacts with hydrogen ?

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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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Answer 2

Answer:

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.