2006-12-01 21:51:44 · 3 answers · asked by WT 2 in Science & Mathematics ➔ Chemistry
Copper Oxide or CuO is a basic oxide. Therefore, it can react with acidic compounds or compounds in general that contain Hydrogen or H. In such a reaction, the copper will replace the hydrogen atom/s in the compound and release them.
Hope it Helps.
2006-12-01 22:02:41 · answer #1 · answered by Anurag S 2 · 2⤊ 6⤋
What happens depends on the compound that contains the hydrogen.
If it is an acid, then copper(II) oxide which is a basic oxide will react with the acid to form salt and water only.
CuO + H2SO4 -------> CuSO4 + H2O
In this reaction the black copper(II) oxide solid disappears and a blue solution of copper(II) sulphate is formed, if sulphuric acid is present in excess.
If you try heating copper(II) oxide with water (H2O), nothing happens.
2006-12-02 06:11:02 · answer #2 · answered by pete 2 · 0⤊ 0⤋
Pete has the right idea, but there are many more examples.
If the hydrogen is in a mineral acid:
CuO (s) + H2SO4 (aq) ---> CuSO4 (aq) + H2O (l)
If the hydrogen is in an organic acid and heated:
CuO (s) + 2 CH3COOH (g) ---> Cu(OOCCH3)2 (s) + H2O (g)
But other reactions are also possible. Copper (II) oxide and water, if heated under pressure will react:
CuO (s) + H2O (g) ---> Cu(OH)2 (s)
And it will also be reduced to metallic copper in hydrogen gas:
CuO (s) + H2 (g) ---> Cu (s) + H2O (g)
2006-12-02 07:36:26 · answer #3 · answered by Richard 7 · 11⤊ 1⤋