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Write a balanced equaiton when copper re...

Write a balanced equaiton when copper reacts with nitric acid, a brown gas is fromed and the solution turns blue.

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When copper reacts with dil. Nitric acid, nitric oxide gas is formed.
`underset(("dil."))(Cu_((s))+8HNO_(3(aq))to3Cu(NO_(3))_(2(aq)))+underset("Nitric oxide")(2NO_((g))+2H_(2)O_((l))`
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