Cu gets oxidized to CuO which is in which colour.
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Answer:
black
The first step in the development of a patina is oxidation to form copper (I) oxide (Cu2O), which has a red or pink colour (equation 1), when copper atoms initially react with oxygen molecules in the air. Copper (I) oxide is further oxidized to copper (II) oxide (CuO), which is black in color (equation 2).
Answered by
6
Explanation:
black
The first step in the development of a patina is oxidation to form copper (I) oxide (Cu2O), which has a red or pink colour (equation 1), when copper atoms initially react with oxygen molecules in the air. Copper (I) oxide is further oxidized to copper (II) oxide (CuO), which is black in color (equation 2).
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