The reaction between dark nitric oxide (NO) and copper foil can be represented by the following equation:
[ 3Cu + 8HNO_3 -----> 3Cu(NO_3)_2 + 4H_2O + 2NO ]
In this reaction, copper (Cu) reacts with nitric oxide gas (NO) in the presence of concentrated nitric acid (\(HNO_3\)) to form copper nitrate (\(Cu(NO_3)_2\)), water (\(H_2O\)), and nitrogen dioxide gas (\(NO_2\)). The dark color of nitric oxide gas might not persist due to the formation of nitrogen dioxide.
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Answer:
The reaction between dark nitric oxide (NO) and copper foil can be represented by the following equation:
[ 3Cu + 8HNO_3 -----> 3Cu(NO_3)_2 + 4H_2O + 2NO ]
In this reaction, copper (Cu) reacts with nitric oxide gas (NO) in the presence of concentrated nitric acid (\(HNO_3\)) to form copper nitrate (\(Cu(NO_3)_2\)), water (\(H_2O\)), and nitrogen dioxide gas (\(NO_2\)). The dark color of nitric oxide gas might not persist due to the formation of nitrogen dioxide.
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